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Walking as 3/4 of his usual speed, a Shivam is 80 minutes late. His usual time to cover the same distance in hours, is

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Walking as 3/4 of his usual speed, a Shivam is 80 minutes late. His usual time to cover the same distance in hours, is
1). 41/2
2). 5
3). 51/2
4). 4


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1 vote
Answered by on | Votes 1 |

⇒ Let the usual time Shivam take be x min.

⇒ Time taken at 3/4 of his usual speed = x/(3/4)

⇒ Time taken at 3/4 of usual speed = (4x/3)

⇒ 4x/3 - x = 80

⇒ x/3 = 80

∴ x = 240 mins = 4 hours

⇒ Shivam usual time to cover the distance is 4 hours

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