If a man walks to his office at ¾ of his usual rate, he reaches office 1/2 of an hour late than usual. What is his usual time to reach office?
Choose the correct choice from the following.
A) 1 1/4 hour	B) 1 1/2 hour	C) 1 1/3 hour	D) 1 1/5 hour	E) 2 1/2 hour
Speed Ratio = 1:3/4 = 4:3   Time Ratio = 3:4   1 -------- 1/2   3 --------- ?   =&gt; 1 1/2 hour   ANSWER:1 1/2 hour
<result>B</result>
If a man walks to his office at ¾ of his usual rate, he reaches office 1/2 of an hour late than usual. What is his usual time to reach office?