Q23. Two cars start together in same direction from the same place. The first goes with a uniform speed of 10 kilometres/ hour. The second goes at a speed of 8 kilometres/hour in the first hour and increase the speed by 0.5 kilometre/hour, each succeeding hour. After how may hours will the second car overtake the first if both go non-stop?

(a) 9 hours

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(b) 5 hours

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(d) 8 hours

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Solution

The correct option is A
(a) 9 hours

Relative distance gained by the first at different times from start

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The correct option is A (a) 9 hours Relative distance gained by the first at different times from start

The correct option is A
(a) 9 hours

Relative distance gained by the first at different times from start