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    P and R are at a distance of 296 km from each other at 7:45 a.m. After 15 minutes, P starts moving towards R at the speed of 32 km/hr. At 8:30 a.m. R
    Question

    P and R are at a distance of 296 km from each other at 7:45 a.m. After 15 minutes, P starts moving towards R at the speed of 32 km/hr. At 8:30 a.m. R starts moving towards P at the speed of 8 km/hr. At what time will they meet?

    A.

    3:30 pm

    B.

    2:45 pm

    C.

    4:50 pm

    D.

    4:20 pm

    Correct option is A

    Given:
    Distance between P and R = 296 km
    P starts moving at 8:00 a.m. towards R at 32 km/h.
    R starts moving at 8:30 a.m. towards P at 8 km/h.
    P and R are at a distance of 296 km from each other at 7:45 a.m.

    Formula Used:
    Time = DistanceRelative Speed\frac{\text{Distance}}{\text{Relative Speed}}

    Meeting Time = Start Time + Remaining DistanceRelative Speed \frac{\text{Remaining Distance}}{\text{Relative Speed}}​​

    Solution:
    P travels alone from 8:00 a.m. to 8:30 a.m. = 0.5 hours
    Distance = 32×0.5=1632 \times 0.5 = 16  km
    Remaining distance at 8:30 a.m.
    296 - 16 = 280 km
    Relative speed = 32 + 8 = 40 km/hr
    Time to meet =28040=7 \frac{280}{40} = 7  hours
    Meeting time = 8:30 a.m. + 7 hours = 3:30 p.m.
    The time when P and R meet is 3:30 p.m.
    Thus, the correct option is (a) 3:30 pm

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