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A man started 20 min late and travel...

A man started 20 min late and traveling at a speed of ` 1 (1)/(2)` times of his usual speed reaches his office in times the time taken by the man to reaches his office in time the time taken by the man to reach his office at his usual speed is

A

1 hour/घंटा

B

30 min/मिनट

C

40 min/मिनट

D

1 hour/घंटा 20 min/मिनट

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