Question

A man moves from A to B at the rate of 4 km an hour.Had he moved at the rate of 11/3 km an hour, he would have taken 3 hours more to move that distance.Find the distance between A and B​

Answer 1

let the distance between Aand B be D km

and time taken when he moves with speed 3kmper hour is T

so D=4T

again in the second case

D=(T+3)×11/3

from these two equations we get

11T+33=12T

T=33 hr

now D=4×33

=132km