A person takes 20 minutes more to cover a certain distance by decreasing his speed by 20%. What is the time taken to cover the distance at his original speed?

A person takes 20 minutes more to cover a certain distance by decreasi

1.	A person takes 20 minutes more to cover a certain distance by decreasing his speed by 20%. What is the time taken to cover the distance at his original speed?
A.	1 hour 30 minutes
B.	1 hour 15 minutes
C.	1 hour 20 minutes
D.	2 hours
Answer» D. 2 hours

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A person takes 20 minutes more to cover a certain distance by decreasing his speed by 20%. What is the time taken to cover the distance at his original speed?

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