A man started 20 min late and travelling at a speed of 11/2 times of his usual speed reaches his office in time. The time taken by the man to reach his office at his usual speed is ?

A man started 20 min late and travelling at a speed of 11/2 times of h

1.	A man started 20 min late and travelling at a speed of 11/2 times of his usual speed reaches his office in time. The time taken by the man to reach his office at his usual speed is ?
A.	40 min
B.	1 h 20 min
C.	1 h
D.	30 min
Answer» D. 30 min

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A man started 20 min late and travelling at a speed of 11/2 times of his usual speed reaches his office in time. The time taken by the man to reach his office at his usual speed is ?

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