Walking 7/6 of his usual rate, a boy reaches his school 4 min early. Find his usual time to reach the school?	Choose the correct choice from the following choices:	A) 28 min	B) 25 min	C) 24 min	D) 30 min	E) 40 min
Speed Ratio = 1:7/6 = 6:7   Time Ratio = 7:6   1 -------- 7   4 --------- ? 28 m   28 minNSWER 28 min
<result>A</result>
Walking 7/6 of his usual rate, a boy reaches his school 4 min early. Find his usual time to reach the school?