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Railway Express - RRB NTPC Test 225
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Railway Express - RRB NTPC Test 225
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  • Question 1/10
    1 / -0.33
    B is 3km to the south of A, D is 5km to the east of B, E is 5km to the west of C and C is 3km to the south of D. What is the distance between A and E and what is the direction of E with respect to A?
    Solutions

    First, 

    B is the south of A, D is the east of B, E is the west of C and C is the south of D.

    In the above figure shows that-

    We find the distance between A and E is 3 + 3 = 6 km and direction of E with respect of A is south.

    Means 6 km, South.

    Hence, option C is the correct answer.

  • Question 2/10
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    The first figure in the first unit of the problem figures bears a certain relationship to the second figure. Similarly, one of the figures in the answer figures bears the same relationship to the second figure in the second unit of the problem figures. You are therefore to locate the figure which would fit in the question mark.

    Solutions
    In first figure from second, the main design rotates 90 ° clockwise and the designs on it are interchanging their position star -triangle and S sign -  The half shaded triangle forms after reversing as follows:

    Hence, option D is the correct answer.
  • Question 3/10
    1 / -0.33
    In the following question, select the odd letter group from the given alternatives.
    Solutions

    Hence, option D is the correct answer.
  • Question 4/10
    1 / -0.33
    The graphs of the equations 25x + 75y = 225 and x = 9 meet at the point.
    Solutions
    At x = 9, the value of 'y' coordinate is zero.
    So,
    Putting y = 0 in the given equation-
    we get,
    ⇒ 25x + 75×0 = 225
    ⇒ x = 9
    Hence, they will meet at (9,0).
  • Question 5/10
    1 / -0.33
    Average weight of an apple and an orange is 500 gm and average weight of an orange and a pineapple is 800 gm and the average weight of a pineapple and an apple is 900 gm. Find the weight of the apple in grams
    Solutions
    Let A, O and P represent Apple, Orange and Pineapple respectively.
    A + O = 2×500 gm = 1000 gm
    O + P = 2×800 gm = 1600 gm
    A + P = 2×900 gm = 1800 gm
    So,by adding the above equation
    2(A+O+P) = 1000 + 1600 + 1800 = 4400 gm
    A+O+P = 2200 gm
    Weight of apple = (A+O+P) – (O+P) = 2200 – 1600 = 600 gm
  • Question 6/10
    1 / -0.33
    if x = 1 – y and x2 = 2 – y2, then what is the value of xy?
    Solutions
    x = 1 – y
    ⇒ x + y = 1 -------(i)

    And x2 = 2 – y2
    ⇒ x2 + y2 = 2 -------(ii)

    Taking square of eq. (i):
    x2 + y2+ 2xy = 1

    Putting the value from eq.(ii):
    ⇒ 2 + 2xy = 1
    ⇒ xy = -½
  • Question 7/10
    1 / -0.33
    Which country led the multi-lateral maritime exercise "La Perouse" which was conducted in the Eastern Indian Ocean Region from 05 to 07 April, 2021?
    Solutions

    • France led the multi-lateral maritime exercise "La Perouse" which was conducted in the Eastern Indian Ocean Region from 05 to 07 April, 2021.

    • For the first time, Indian Navy Ships INS Satpura (with an integral helicopter embarked) and INS Kiltan alongwith P8I Long Range Maritime Patrol Aircraft participated in this exercise.

    • Along with Indian Navy ships, the ships and aircraft of French Navy (FN), Royal Australian Navy (RAN), Japan Maritime Self Defence Force (JMSDF) and United States Navy (USN) also participated in this exercise.

  • Question 8/10
    1 / -0.33
    Which was the first Indian Bank to get ISO certification ?
    Solutions

    ● Canara Bank was the first bank to get ISO certification.

    ● It’s headquarters is situated in Bengaluru.

    ● In 1996, Canara Bank became the first Indian Bank to get ISO certification for "Total Branch Banking".

  • Question 9/10
    1 / -0.33
    Which of the following days observed every year on 10th April?
    Solutions
    • The World Homoeopathy Day is being observed across the world on 10th April to commemorate the birth anniversary of the founder of Homoeopathy (Dr Christian Fredrich Samuel Hahnemann).
    •  On this occasion, The Central Council for Research in Homoeopathy (CCRH) has organised a two-day convention at Dr. Ambedkar International Centre in New Delhi.
    • Homoeopathy is a system of medicine (the second most widely used system) was developed by Dr. Samuel Hahnemann in Germany in 1796.
  • Question 10/10
    1 / -0.33
    Which of the following infectious agents causes malaria?
    Solutions

    • Protozoa is an infectious agent that causes malaria.

    • Malaria is the mosquito-borne infectious disease that spreads in humans and animals.

    • Malaria symptoms are fever, tiredness, vomiting, and headaches.

    • Protozoa is a parasite or single living eukaryote that lives using organic matter like organic tissues.

    • Protozoa is classified as animal class.

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