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A woman driving her car reaches her destination in 30 hours. If she reduces her speed

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by Mikrislac » Fri Jul 31, 2020 4:00 pm

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A woman driving her car reaches her destination in 30 hours. If she reduces her speed by 1/15, then she travels 10 km less in the same amount of time. What is the original speed of the car in km/hr?

A. 4.0

B. 5.0

C. 5.5

D. 6.0

E. 7.5
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Re: A woman driving her car reaches her destination in 30 hours. If she reduces her speed

by Srishtim23 » Sun Aug 02, 2020 3:31 am
While travelling with speed S, the car covers distance in 30 hours
So total distance covered: 30*S
Reduced speed = 14s/15. and the distance covered in 30 hours = 30*S-10

on solving Speed*time= distance, we get s=5
OA:5km/hr
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