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Quantitative Aptitude :: Time and Distance - Discussion

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Choose the correct option.

Sanu travelled a distance of 20 kms at the speed of 5 km/hr, he reached 40 minutes late. If he had walked at the speed of 8 km/hr, how early from fixed time will he reach?

A15 mins

B50 mins

C25 mins

D1.5 hrs.

Answer: Option (Login/Signup)

Show Explanation

Time taken to travel 20 kms at the speed of 5 kmph.

=> t = 20/5 = 4 hrs.

Actual time of reaching = (4 hrs - 40 mins) = 3 hrs 20 mins ......(1)

Time taken to travel 20 kms at the speed of 8 kmph.

=> t = 20/8 = 2.5 hrs. ......(2)

Difference between (1) and (2) => (3 hrs 20 mins - 2 hrs 30 mins)

(200 mins - 150 mins) = 50 mins.

Sanu would have reached 50 mins earlier.

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