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SUPER 30 RRB Group D Test 169
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SUPER 30 RRB Group D Test 169
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  • Question 1/30
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    The ratio of the average ages of three people and the other two in a group of five people is 9 : 7. If the difference of their averages is 12, then find out the average age of all 5 people?
    Solutions

    Let the average age of three people = 9x and

    Average age of two people = 7x

    ∴ According to the question,

    Total age of 5 people will be

    3 × 9x + 2 × 7x = 27x + 14x = 41x

    Also, 9x – 7x = 12 (given)

    2x = 12

    x = 12/2 = 6

    Now, average age of 5 people

    = = 49.2

  • Question 2/30
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    Solve the following equation to find x:

    (x – 2)2 – 36 = 0; x Є N

    Solutions

    Given, (x – 2)2 – 36 = 0

    (x – 2)2 = 36

    x − 2 = √36 = 6

    x = 6 + 2 = 8

  • Question 3/30
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    Which of the following numbers is divisible by 9?
    Solutions

    A number is divisible by 9 if its digits sum are divisible by 9.

    So, 5+8+5+5+6 = 29 ; not dvisible by 9

    5+6+1+1+2 = 15 ; not divisible by 9

    4+9+6+5+3 = 27 ; divisible by 9

    So, 49653 is the required number.

  • Question 4/30
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    In triangle ABC, AD ⊥ BC and AO is the bisector of ∠BAC. If ∠ABC = 65° and ∠ACB = , then ∠DAO is
    Solutions

    In the figure above, AD ⊥ BC and ∠BAO=∠CAO = x (let)

    In ∆ABC, ∠A = 180° - (65° + 23.5°)

    = 180° - 88.5° = 91.5°

    ∴ x = = 45.75°

    Since ∠BOA is the exterior angle of ∆AOC,

    ∠BOA = ∠CAO + ∠ACB

    ∠BOA = 45.75° + 23.5° = 69.25°

    ∴ ∠DOA = 180° - 69.25° = 110.75°

    Now, in ∆DOA,

    ∠DAO = (110.75° + 90°)- 180°

    = 200.75° - 180° = 20.75°

    Hence, option D is the correct answer.

  • Question 5/30
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    A person walks 2/5th of the total distance and covers one-third of the remaining distance by bus. What is the fraction of the remaining distance to be covered?
    Solutions

    Let the total distance is 120x.

    = 48x (walking)

    = 24x (Bus)

    ∴ Remaining distance= 120x−(48x+24x)

    = 120x-72x= 48x

    So,

    Hence, option B is the correct answer.

  • Question 6/30
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    Diksha obtained 58% marks in an exam and the maximum marks was 450. She obtained ______ marks.
    Solutions

    Obtained marks by Diksha

    = 58% of 450

    =

    Hence, option C is the correct answer.

  • Question 7/30
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    What is the value of one-fourth of G, if G = (96÷12) + 14x(12+8) ÷2
    Solutions

    G = (96 ÷ 12) + 14 x (12+8) ÷ 2

    = 8 + 14 × 20 ÷ 2

    = 8 + 14 × 10

    = 8 + 140 = 148

    ∴  = 37

  • Question 8/30
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    Samu needs 40% to pass. If he scores 190 marks, but still falls short by 10 marks, then what is the maximum number of marks he could have scored?
    Solutions

    Let the maximum marks he could have scored is 500x.

    Passing marks = = 40 × 5x = 200x

    According to the question,

    200x = 190 + 10

    200x = 200

    x = 200/200 = 1

    ∴ Maximum marks could be = 500 × 1 = 500

  • Question 9/30
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    10 men can finish painting a wall in 8 days. How many more men will be needed if the painting work is to be finished in 4 days?
    Solutions

    M1 × D1 = M2 × D2

    Let x more men are required.

    ∴ According to the question,

    10 × 8 = (10 + x) × 4

    80 = 40 + 4x

    4x = 80 – 40 = 40

    x = 40/4 = 10

  • Question 10/30
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    The following pie diagram shows information about tyres manufacturing data from various companies in India during 2017. If the total tyres produced in India dining 2017 was 1,80,000 units, how many units of tyres were produced by company 'D'?

    Solutions

    the total tyres produced in India dining 2017 = 180000

    Units of tyres manufactured by company D will be

    = 15% of 180000

    =  = 15 × 1800 = 27000

  • Question 11/30
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    Which of the following is not a salivary gland?
    Solutions

    * Caecum is part of large intestine.

    * Three pairs of salivary glands open in mouth.

    * They are – Parotid, Sub maxillary, Sublingual.

    * Parotid is the largest salivary gland.

  • Question 12/30
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    Which of the following is heterocrine gland?
    Solutions

    * Pancreas is a heterocrine gland.

    * It has both endocrine and exocrine parts.

    * It is the second largest gland.

    * Liver is the largest gland.

  • Question 13/30
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    Who is the current IPL Chairman?
    Solutions

    • IPL 2020 will be conducted in UAE.

    • The T20 world cup was supposed to held in Australia but due to COVID pandemic postponed

    • IPL T20 established in 2008 and won by Rajasthan royal

  • Question 14/30
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    Which of the following Tribes are found in Manipur?
    Solutions

    * Thadou, Aimol are found in Manipur.

    * Thadou, Aimol, Maram, Paite, Chiru, Purum, Kuki, Monsang, Angami are the major tribes of Manipur.

    * Pawai, Chakma, Raba, Hajong, Lakher, Garos, Jaintias Khasis are the tribes of Meghalaya.

    * Dimasa, Raba, Chakma, Lakher, Khasi, Synteng, Kuki, Pawai are the tribes of Mizoram.

    * Nagas, Angami, Sema, Garo, Kuki, Kachari, Mikir are the tribes of Nagaland.

    * Bhotia, Buksa, Jaunsari, Kol, Raji, Tharu are found in Uttar Pradesh.

  • Question 15/30
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    Who among the following launched the 'Single Window Clearance System' for smooth operationalisation of coal mines on January 11, 2021?
    Solutions

    • On January 11, 2021, the Union Home Minister Amit Shah launched the 'Single Window Clearance System'.

    • It is an online platform to obtain clearances for the smooth operationalization of coal mines.

  • Question 16/30
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    The book titled, "The Population Myth: Islam, Family Planning and Politics in India" is written by_____.
    Solutions

    • The book titled, "The Population Myth: Islam, Family Planning and Politics in India" is written by former chief election commissioner S Y Quraishi.

    • "The Population Myth: Islam, Family Planning and Politics in India" is a detailed analysis of the 'Muslim rate of growth' in the light of population data and national and international reports.

    • S Y Quraishi served as the 17th Chief Election Commissioner of India from 30 July 2010 to 10 June 2012.

    • He has also served as a Secretary in the Ministry of Youth Affairs and Sports.

  • Question 17/30
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    On Jan 18, 2021, the Union Minister of Youth Affairs & Sports Kiren Rijiju launched the Khelo India State Centre of Excellence (KISCE) in_____.
    Solutions

    • On January 18, 2021, the Union Minister of Youth Affairs & Sports Kiren Rijiju launched the Khelo India State Centre of Excellence (KISCE) at the Shiv Chhatrapati Sports Complex at Mhalunge-Balewadi in Pune, Maharashtra.

    • This Maharashtra-based sports complex will focus on three Priority Olympic disciplines – Shooting, Athletics and Cycling.

    • This is the 9th Khelo India State Centre of Excellence (KISCE) formally inaugurated by the Union Minister so far.

  • Question 18/30
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    Which is the first country to approve AstraZeneca- Oxford's COVID-19 vaccine?
    Solutions

    • On December 30, 2020, Britain became the first country in the world to approve a coronavirus vaccine developed by Oxford University and AstraZeneca.

    • Earlier, the UK was the first country to approve the Pfizer / BioNTech vaccine.

    • On December 2, 2020, the UK was the first country in the world to approve the Pfizer vaccine for public use.

  • Question 19/30
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    Who among the following was awarded "ASSOCHAM Enterprise of the Century Award" on December 19, 2020?
    Solutions

    * On December 19, 2020, Prime Minister Narendra Modi honored Ratan Tata (Tata Group) with the "ASSOCHAM Enterprise of the Century Award".

    * Associated Chambers of Commerce and Industry of India’s (ASSOCHAM) was established in 1920 by promoter Chambers representing all regions of India.

    * The organization represents the interests of trade and commerce in India.

    * It also acts as an interface between issues and initiatives with a goal to promote both domestic and international trade and reduce trade barriers.

  • Question 20/30
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    In December 2020, Prime Minister Narendra Modi launched the Ayushman Bharat Pradhan Mantri Jan Arogya Yojana (AB-PMJAY) SEHAT scheme for which of the following Union Territory?
    Solutions

    * On December 26, 2020, Prime Minister Narendra Modi launched Ayushman Bharat Pradhan Mantri Jan Arogya Yojana (AB-PMJAY) SEHAT scheme for the residents of Jammu and Kashmir.

    * Under this scheme, Government will provide a cover of 5 lakh per family per year for medical treatment in empanelled hospitals, both public and private.

    * This scheme was launched by the Government of India on September 23, 2018.

  • Question 21/30
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    Mandapeshwar Caves are located near which of the following city?
    Solutions

    * Mandapeshwar Caves are located at Borivalli near Mumbai.

    * They are also known as Montperir Caves.

    * Natraja, Sada Shiva and Ardhanarishwar sculptures are found here.

    * Originally they are Buddhist caves but later converted into Chruches.

  • Question 22/30
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    M, N, P, R, T, W, F and H are sitting around a circle at the centre, P is third to the left of M and second to the right of T. N is second to the right of P. R is second to the right of W who is second to the right of M. F is not an immediate neighbour of P.

    Who is to the immediate right of P?

    Solutions

    P is third to the left of M and second to the right of T. N is second to the right of P. R is second to the right of W who is second to the right of M. F is not an immediate neighbour of P.

    Final Arrangement is:

    Therefore, H is to the immediate right of P.

    Hence, option A is the correct answer.

  • Question 23/30
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    In the question two statements are given, followed by four conclusions, I, II, III and IV. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. 

    Statements
    I. All the machines are singers.
    II. All the singers are calculators.

    Conclusion
    I. All the calculators are singers.
    II. All the machines are calculators.
    III. All the singers are machines.
    IV. Some calculators are machines.
    Solutions
    The venn diagram based on two possibilities has been represented below:

    Conclusion I:- It cannot be said with certainty that all the calculators are singers.
    Conclusion II: - It can be said with certainty that all the machines are calculators.
    Conclusion III:- It cannot be said with certainty that all the singers are machines.
    Conclusion IV:- It can be said with certainty that some calculators are machines.
    Hence, both conclusion (II) and (IV) follow.
    Hence, option B is correct answer.
  • Question 24/30
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    Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

    Statements:
    1) Some machines are kites.
    2) No machine is a pigeon.

    Conclusions:
    I. Some machines are pigeons.
    II. All kites are pigeons.
    III. Some kites are not pigeons.
    Solutions

     The least possible diagram is:

     I. Some machines are pigeons – It is not a definite case, hence false.
    II. All kites are pigeons - It is not a definite case, hence false.
    III. Some kites are not pigeons – As some part of kites is machine and no machine is pigeon therefore it is a definite case that some kites are not pigeons, hence true.
    So, only conclusion III follows.

    Hence, option D is the correct answer.

  • Question 25/30
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    In the question three statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

    Statement 1:     Some apple are red.
    Statement 2: All red are food.
    Statement 3: All sweet are food.

    Conclusion I:     Some apple are sweet.
    Conclusion II: Some food are apple.
    Solutions
    The least possible Venn diagram for the given statement is as follows,

    Thus only conclusion II follows.
    Hence, option B is the correct answer.
  • Question 26/30
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    In the following question, some statements followed by some conclusions are given. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements.

    Statements:
    Some Problems are Answers.
    Some Answers are Solutions.

    Conclusions:
    I. All Solutions are Problems.
    II. All Answers are Solutions.
    III. Some Solutions are problems.

    Solutions

    The least possible Venn-diagram is-

    Conclusions:

    I. All Solutions are Problems - It is not a definite case, hence false.

    II. All Answers are Solutions -It is not a definite case, hence false.

    III. Some Solutions are problems -It is not a definite case, hence false.

    So, none of the conclusions follows.

    Hence, option C is the correct answer.

  • Question 27/30
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    Read all the information and answer the question.
    A + B means ‘A is the mother of B’;
    A – B means ‘A is the brother of B’;
    A × B means ‘A is the father of B’;
    A ÷ B means ‘A is the daughter of B’;
    How is L related to M in the expression M × N – J + R ÷ L?
    Solutions

    M × N = M is the father of N

    N – J = N is the brother of J

    J + R = J is the mother of R

    R ÷ L = R is the daughter of L

    {Male = +, Female = -}

    From the above diagram, it is clear that L is the son-in-law of M.

    Hence, option B is the correct answer.

  • Question 28/30
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    If ‘GOBBLER’ is coded as ‘SFMACPH’, then how is ‘PAINTER’ is coded?

    Solutions

     Here the pattern of coding is:

    Similarly,

    Hence, option C is the correct answer.

  • Question 29/30
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    T introduces U saying, “He is the husband of the granddaughter of the father of my father ,’’How is related to U?
    Solutions

    Father’s father. Grandfather, grandfather’s granddaughter – Sister, Sister’s husband – Brother- in – law. So T is U’s brother in law.

    Hence option D is the correct answer.

  • Question 30/30
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    Select the option that is related to the third. term in the same way as the second. term is related to the first term.


    Mekong : River :: Aconcagua : ?

    Solutions

    As,

    Mekong is river in Asia.

    similarly,

    Aconcagua is a mountain in Argentina.


    Hence, option D is the correct answer.

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