SOLUTION: Walking 3/4 of his usual speed , a student is 1o minutes late to his school. find his usual time to cover the distance.

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Question 549433: Walking 3/4 of his usual speed , a student is 1o minutes late to his school. find his usual time to cover the distance.
Answer by lwsshak3(11628) About Me  (Show Source):
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Walking 3/4 of his usual speed , a student is 1o minutes late to his school. find his usual time to cover the distance.
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let x=usual travel time to cover the distance
let s=usual speed to cover the distance
distance=speed*travel time=sx
distance/speed=travel time
sx/(3/4)s=x+10
4x/3=x+10
x/3=10
x=30
ans:
usual travel time to cover the distance=30 min