walking at ¾ of his usual speed ,a man is late by 2 ½ hr. the usual time is Choices
A) 7 1/9
B) 7 1/2
C) 7 1/5
D) 7 1/8
E) 7 1/7
Usual speed = S Usual time = T Distance = D New Speed is ¾ S New time is 4/3 T 4/3 T – T   = 5/2 T=15/2   = 7 1/2   Aswer: 7 1/2
<result>B</result>
walking at ¾ of his usual speed ,a man is late by 2 ½ hr. the usual time is