Walking at 3/4 of his usual place, a man reaches his office 20 minute late. Find his usual time?  Pick one:	A) 2 hr	B) 1 hr	C) 3 hr	D) 1.5 hr	E) 2.5 hr
Let the original speed be S and time be T   If new speed=SÃ—3/4, then new time would be TÃ—4/3(D = ST = Constant).   Given,   3T/4âˆ’T=20T/3   â‡’ T=60 minutes   = 1 hour   2 hrnswer :2 hr
<result>A</result>
Walking at 3/4 of his usual place, a man reaches his office 20 minute late. Find his usual time?