By walking at 3/4th of his usual speed, a man reaches office 16 minutes later than usual. What is his usual time?  Select.
A) 48min  B) 50min  C) 65min  D) 60min  E) 70min
let T be the usual time.   time spent=4T/3   therefore, 4T/3=T+16   4T=3T+48...therefor T=48min   48minNSWER:48min
<result>A</result>
By walking at 3/4th of his usual speed, a man reaches office 16 minutes later than usual. What is his usual time?