Question

Two cities A and B are at a distance of 60 km from each other . Two persons P and Q start from First city at a speed of 10km/hr and 5km/hr respectively . P reached the second city B and returns back and meets Q at Y . Find the distance between A and Y .
A. 30 km
B. 40 km
C. 50 km
D. 55km

Answer 1

Correct Answer - B
Time taken by P to reach city B is 6 hr . In 6 hr , distance covered by Q is 30 km . Now at some x distance they will meet . So
`(x)/(5) = ((30-x))/(10) , x = 10 `