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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

    More questions

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    • Options
    • A. See
    • B. Hear
    • C. Smell
    • D. Taste
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    • 2. 
      Statement:
      Some dogs bark.
      All dogs bite.
      Conclusions:
      I. Those dogs who do not bark, also bite.
      II. Those dogs who do not bark, not necessarily bite.

    • Options
    • A. Only I follows
    • B. Only II follows
    • C. Either I or II follows
    • D. Neither I nor II follows
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    • 3. 
      NA

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    • A. Petrol : Car
    • B. Electricity : Televsioin
    • C. Ink : Pen
    • D. Dust : Vaccum cleaner
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    • 4. 
      NA

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    • C. Marble : Smooth
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    • 5. 
      16 : 56 : : 32 :?

    • Options
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    • B. 112
    • C. 118
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    • 6. 
      NA

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    • A. Sweetness
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    • C. Bright
    • D. Beautiful
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    • 7. 
      NA

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    • 8. 
      NA

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      Mohan starts from point A and walks 1 km towards south, turns left and walks 1 km. Then he turns left again and walks 1 km. Now he is facing

    • Options
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      N/A

    • Options
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