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A car can finish a certain journey in 10...

A car can finish a certain journey in 10 hours at the speed of 48 km//hour.By how much should its speed be increased so that it may take only 8 hours to cover the same distance ?

A

6 km/hour

B

7.5 km/hour

C

12 km/hour

D

15 km/hr

Text Solution

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The correct Answer is:
C
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S CHAND IIT JEE FOUNDATION-DISTANCE TIME AND SPEED -QUESTION BANK -14(a)
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  16. A boy is running at a speed of p kmph to cover a distance of 1 k...

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  17. A walks at a uniform rate of 4 km an hour; and 4 hours after his st...

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