Two clocks were set right at noon on Sunday. One gains 2 min and the other loses 3 min in 24 hours. What will be the true time when the first clock indicates 3PM on Wednesday?
A
2:38PM
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B
2:54PM
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C
2:23PM
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D
2:48PM
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Solution
The correct option is B2:54PM Time from noon on Sunday to 3PM on Wednesday =75Hours. 24hours2min of the first clock =24hours of the correct one. ⇒1hour of the first clock =24×30721hours of correct one. ⇒75hours of the first clock =24×30×75721hours of correct one =74hours53.7min Hence the answer is 2:54PM.