Kaju and Raju start running from the same place at a rate of 7.6 kmph and 7.85 kmph respectively. Wh

M4maths Previous Puzzles

17 Dec 2019 Speed

Kaju and Raju start running from the same place at a rate of 7.6 kmph and 7.85 kmph respectively. What time in hours will they take to be 13.5km apart, if they walk in the same direction?

OPtion

1) 50
2) 51
3) 52
4) 53
5) 54
6) 55
7) 56
8) 57
9) 58
10) None of these

Solution

The relative speed of the boys = 7.85kmph – 7.6kmph
= 0.25 kmph

3Distance between them is 13.5 km
Time = Distance/Speed
Time= 13.5km / 0.25 kmph = 54 hrs

Correct Option: 5 Best Solution (1)