Question

Please explain the answer.

Answer 1

A. B
speed=8 km/hr. speed=10km/hr
time= T-15min. time=T+15min
Distance=Speed/time. Dist=speed/time
D=8/T-15. D=10/T+15


since distance between A&B is the same
so,,8/T-15=10/T+15
Crass multiplication
8(T+15)=10(T-15)
8T+120=10T-150
TRANSPOSITION::