SOLUTION: By walking 3/4th of his usual speed, a man reaches his office 20 minutes later than usual. What is his usual time?

Question 4053: By walking 3/4th of his usual speed, a man reaches his office 20 minutes later than usual. What is his usual time?
Answer by khwang(438) (Show Source): You can put this solution on YOUR website!
Let L be the distance, V be his usual speed.
We have L/(3/4 V) = L/V + 20.
So, 4/3 * L/V = L/V + 20,
Or 1/3 * L/V = 20,
we get L/V = 60 (min)

Since V is his usual speed, so T = L/V his usual time for
him walking from to the office.
Another way , let T (min) be the usual time, then he spent 4 T/3
when walking in 3/4 of usual speed.
Since 4T/3 = T +20, we obtain T = 60 min.
Kenny

RELATED QUESTIONS
Walking 6/7th of his usual speed, a man is 12 minutes too late. The usual time taken by... (answered by ankor@dixie-net.com)

Walking at 6/7th of his usual speed, a man is 25 mins too late. His usual time... (answered by josmiceli)

Walking 3/4 of his usual speed , a student is 1o minutes late to his school. find his... (answered by lwsshak3)

if a man walks at 4/5th of his usual rate he reaches office 5 minutes later than usual... (answered by ankor@dixie-net.com)

A person walking 5/6 of his usual rate is 40 minutes late.What is his usual... (answered by josgarithmetic)

1. Ramesh walks at 5/6th of his usual speed and reaches school 4 minutes late. Find the... (answered by edjones,ankor@dixie-net.com)

Hi A person covers 2/3 of his journey at his usual speed and the remaining distance at (answered by mananth,math_helper,ikleyn)

a man drives regularly from his office to his home when he drives 36 kph he arrives home... (answered by ankor@dixie-net.com)

Ricardo runs 10 miles each Saturday. If he doubles his usual speed, he can run the 10... (answered by ad_alta)