Question

A man covered a certain distance at some speed.Had he moved 3km per hour faster, he would have taken 40min less. If he had moved 2km per hour less he would have taken 40min more.The distance is

Answer 1

Explanation:

Distance =S1S2S1−S2×tS1S2S1−S2×t

from both conditions,

S(S+3)3×40=S(S−2)2×40S(S+3)3×40=S(S−2)2×40

2S+6=3S−62S+6=3S−6

S = 12 km/hr

from condition 1st

12×153×406012×153×4060 = 40 km