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RRB OS - I Aptitude Test - 3
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RRB OS - I Aptitude Test - 3
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  • Question 1/10
    1 / -0

    What will come in place of the question mark (?) in the following questions?(You are not expected to calculate exact values)

    (?) +  (8.021)3 = 13.41 × 34.88 + 74.10 –  (3.98)2

    Solutions

    (?) +  (8)3 = 13 × 35 + 74 – 16 
    Or, (?) + 512 = 455 + 58
    Or, (?) = 455 + 58 – 512 
    Or, (?) = 1

     

  • Question 2/10
    1 / -0

    What will come in place of the question mark (?) in the following questions?(You are not expected to calculate exact values)

    10 +(?) × (7.01)2 = 19.912 × 18.009127

    Solutions

    10 + (?) × (7)2 = 20 × 18 
    Or, (?) × 49 = 360 - 10 
    Or, (?) = 350 ÷ 49 =  50/7 
    Or, (?) =  50/7 

     

  • Question 3/10
    1 / -0

    What will come in place of the question mark (?) in the following questions?(You are not expected to calculate exact values)

    512.17+888.12-789.689=?-112.02 X 111. 998

    Solutions

    512.17+888.12-789.689=?-112.02 X 111. 998
    512 + 888 - 790 = ? - 112 X 112
    1400 - 790 = ? - 12544
    610 + 12544 = ? 
    13154 = ? 

     

  • Question 4/10
    1 / -0

    What will come in place of the question mark (?) in the following questions?(You are not expected to calculate exact values)

    151/5 [13.02 × 150.99 ÷ 30.025] = ? − 106.99

    Solutions

     

  • Question 5/10
    1 / -0

    What will come in place of the question mark (?) in the following questions?(You are not expected to calculate exact values)

    26.09 % of 1649.94 + (10.94)2 + √? = (24.09)2

    Solutions

     

  • Question 6/10
    1 / -0

    Directions For Questions

    The questions given below contain two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question. Read both statements and give answer- (A) If statement I alone is sufficient but statement II alone is not sufficient. (B) If statement II alone is sufficient but statement I alone is not sufficient (C) If each statement alone (either I or II) is sufficient (D) If statement I and II together are not sufficient (E) If both statement together are sufficient but neither statement alone is sufficient.

    ...view full instructions

    How much amount did Raghav invested in scheme A if he invested a total amount of Rs 5000 in schemes A and B for the period of two years?

    Statements:

    1) Simple Interest earned from scheme A is Rs 50 more than earned by scheme B.

    2) Scheme A gives Rs 3248 after two years at an interest of 8%.

    Solutions

    Total amount = Rs 5000
    Time = 2 years
    From statement 1, 
    We can’t calculate the amount invested in Scheme A as neither the rate of interest is given nor the relation between two rates is given.
    From statement 2

    Or, x = Rs 2800

     

  • Question 7/10
    1 / -0

    Directions For Questions

    The questions given below contain two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question. Read both statements and give answer- (A) If statement I alone is sufficient but statement II alone is not sufficient. (B) If statement II alone is sufficient but statement I alone is not sufficient (C) If each statement alone (either I or II) is sufficient (D) If statement I and II together are not sufficient (E) If both statement together are sufficient but neither statement alone is sufficient.

    ...view full instructions

    What is the profit earned by selling an article for Rs13500?

    I. 20% profit earned by selling each article.

    II. The cost of 3 articles is equal to the selling price of 2 articles.

    Solutions

    I. 13500 = 120/100 × CP ⇒ CP = Rs11250
    Profit = 13500–11250 = Rs 2250
    II. 3CP = 2× 13500 
    CP = 2×4500 = 9000
    Profit = 13500–9000 = Rs 4500

     

  • Question 8/10
    1 / -0

    Directions For Questions

    The questions given below contain two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question. Read both statements and give answer- (A) If statement I alone is sufficient but statement II alone is not sufficient. (B) If statement II alone is sufficient but statement I alone is not sufficient (C) If each statement alone (either I or II) is sufficient (D) If statement I and II together are not sufficient (E) If both statement together are sufficient but neither statement alone is sufficient.

    ...view full instructions

    What is the ratio between A and D.

    I. When Rs 15000 divided among A, B, C and D. A gets 25% more than B and C gets Rs 2000 more than D.

    II. The amount received by A is 3000 more than D.

    Solutions

    From statement I: 
    A = 125% of B and C = D + 2000
    From statement II.
    A =D +3000
    B=100A/125 =0.8A =0.8D +2400
    A + B + C + D =15000
    D + 3000 + 0.8D + 2400 +D + 2000 + D =15000
    3.8D =7600
    D=2000
    A =2000 + 3000 =5000
    A: D =5:2

     

  • Question 9/10
    1 / -0

    Directions For Questions

    The questions given below contain two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question. Read both statements and give answer- (A) If statement I alone is sufficient but statement II alone is not sufficient. (B) If statement II alone is sufficient but statement I alone is not sufficient (C) If each statement alone (either I or II) is sufficient (D) If statement I and II together are not sufficient (E) If both statement together are sufficient but neither statement alone is sufficient.

    ...view full instructions

    There are some Munch and dairy milk chocolate in a bucket. Find how many dairy milk chocolate in a bucket.

    I. Total 10 chocolates in bucket, if selecting two chocolate at random probability of being at least one dairy milk is  8/15

    II Selecting two chocolate from bucket at random probability of being both Munch chocolate is 1/15

    Solutions

    Let total dairy milk chocolate in bucket be ‘a’
    From I
    if dairy milk chocolate in bucket be ‘a’
    Then Munch chocolate in bucket  = 10 – a
    Probability at least one dairy milk chocolate

    a=3
    From II:
    From statement II we cannot be determine

     

  • Question 10/10
    1 / -0

    Directions For Questions

    The questions given below contain two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question. Read both statements and give answer- (A) If statement I alone is sufficient but statement II alone is not sufficient. (B) If statement II alone is sufficient but statement I alone is not sufficient (C) If each statement alone (either I or II) is sufficient (D) If statement I and II together are not sufficient (E) If both statement together are sufficient but neither statement alone is sufficient.

    ...view full instructions

    In a class 180 students, 80 boys like M.S. Dhoni, 60 boys Like Virat Kohli, How many students like Rohit Sharma (Students lik among MS.Dhoni, Virat Kohali and Rohit Sharma)

    I. 10 student like all three players and total number of students who like only M.S. Dhoni , only  Virat Kohli & only Rohit Sharma is 30, 20 and 60 respectively. 10 students like only Virat Kohli & Rohit Sharma.

    II. 20 students who like M.S. Dhoni & Virat Kohli but not like Rohit sharama is equal to the total number of students who like Rohit Sharma & M.S. Dhoni but not like Virat Kohli. 30 students like only M.S. Dhoni & 20 students like only Virat Kohli.

    Solutions

    From I.
    Total number of  students who like M.S. Dhoni & Virat Kohli = 60 – ( 10 + 10 + 20) = 20
    Total number of students who like M.S. Dhoni & Rohit Sharma = 80 – ( 30 + 10 + 20) = 20
    Total students who like Rohit Sharma = (60 + 20 + 10 + 10) = 100
    From II –
    Total students who like all three players = 80  - ( 30 + 20 + 20) = 10
    Only statement I is sufficient

     

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