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  • Question
  • At what time will B catch up with A, if A starts from a place at 11.00 A.M. and travels at a speed of 3.5 kmph, B starts at 1.00 P.M. and travels with speeds of 1 kmph for 1 hour, 2 kmph for the next 1 hour, 3 kmph for the next 1 hour and so on.


  • Options
  • A. 8 : 47 pm
  • B. 6 : 40 pm
  • C. 8 : 42 pm
  • D. 7 : 40 pm

  • Correct Answer
  • 7 : 40 pm 

    Explanation

    At 1 pm ... Distance between A and B = 2x3.5 = 7 kms
    at 2 pm .....Distance between A and B = 7 + 3.5 - 1 = 9.5 kms
    At 3 pm ....Distance between A and B = 9.5 + 3.5 - 2 = 11 kms.
    ..
    ..
    ..
    At 7 pm distance between A and B = 3 kms.
    From 7 pm to 8 pm, speed of A = 3.5 kmph
    speed of B = 8 kmph
    Relative speed = 4.5 kmph

    Time taken by B to meet A = 3/4.5 hrs = 30/45 hrs = 120/3 mins = 40 mins.

    So meeting time is 7 : 40 PM.

  • Tags: AIEEE, Bank Exams, CAT, GATE, GRE, Bank Clerk, Bank PO

    Arithmetic Reasoning problems


    Search Results


    • 1. The price of commodity X increases by 60 rupees every year, while the price of commodity Y increases by 20 rupees every year. If in 2002, the price of commodity X was Rs. 320 and that of Y was Rs. 740, in which year commodity X will cost 60 rupees more than the commodity Y ?

    • Options
    • A. 2011
    • B. 2014
    • C. 2012
    • D. 2017
    • Discuss
    • 2. 6 choose 3 =

    • Options
    • A. 20
    • B. 30
    • C. 18
    • D. 24
    • Discuss
    • 3. The complexity of linear search algorithm is

    • Options
    • A. O(n2)
    • B. O(n log n)
    • C. O(n)
    • D. O(log n)
    • Discuss
    • 4. With similar triangles the corresponding angles are equal.

    • Options
    • A. TRUE
    • B. FALSE
    • Discuss
    • 5. Are Alternate Exterior Angles congruent?

    • Options
    • A. TRUE
    • B. FALSE
    • Discuss
    • 6. What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ?

    • Options
    • A. 8 hrs
    • B. 7 hrs 15 min
    • C. 7 hrs 30 min
    • D. 8 hrs 20 min
    • Discuss
    • 7. A kiddy bank of a child contains all Rs. 1, 50 paise and 25 paise coins. What is the total amount in the bank ? (1) Total number of coins are 20 (2) The number of 50 paise and 25 paise coins are in the ratio of 7:3.

    • Options
    • A. only 1 is needed
    • B. only 1 is needed
    • C. Both and 2 are needed
    • D. None
    • Discuss
    • 8. Multiplicative inverse of 0

    • Options
    • A. 0
    • B. 1
    • C. infinity
    • D. None of the above
    • Discuss
    • 9. How many right angles does a square have?

    • Options
    • A. 2
    • B. 6
    • C. 4
    • D. 8
    • Discuss
    • 10. What is the value of 28 tens?

    • Options
    • A. 28
    • B. 2
    • C. 2800
    • D. 280
    • Discuss


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