If a boy travels with 5/6th of usual his speed,he is late by 10 mins.What is the usual time taken to travel? Pick one
A) 44min  B) 46min  C) 48min  D) 50min  E) 52min
speed=5/6*x   time=6/5t becz speed inversely proportional to time   6t/5-t=10   t=50min   ANSWER:50min
<result>D</result>
If a boy travels with 5/6th of usual his speed,he is late by 10 mins.What is the usual time taken to travel?