a. Prelims Paper (GS) Paper – 2

(CSAT Q10002) (UPSC 2014) (Time, Distance, Work) Five person fire bullets

This topic contains 2 replies, has 2 voices, and was last updated by  Pratik Shinde 2 years, 8 months ago.

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  • #3596

    Shashank Madhukar
    Participant

    Q. 10002 : Five persons fire bullets at a target at an interval of 6,7,8,9 and 12 seconds respectively. The number of times they would fire the bullets together at the target in an hour is

    (a)   6

    (b)   7

    (c)   8

    (d)  9

    Solve and post answer with solution below.. (Mobile Users click – Visit Website)

    solution will be provided in (CSAT Q 10003)

    #4894

    Srivastava

    8 times

    #4900

    Pratik Shinde
    1. LCM of given numbers 504 sec i.e. 8.4 mins.
    2. So in 1 hr with time period 8.4 min it will repeat 7 times.
    3. Ans 7
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