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A clock shows the time as 11 am. If the minute hand gains 5 minutes every hour, how many minutes will the clock gain by 11 pm?
1. 56
2. 72
3. 40
4. 60

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Correct Answer - Option 4 : 60

We know that the clock gains 5 minutes every hour.

Number of hours between 11 am and 11 pm = number of hours between 11 am and 12 noon + number of hours between 12 noon and 11 pm

⇒ 1 + 11

⇒ 12 hours

Therefore, in 12 hours, the clock will gain = 12 × 5 = 60 minutes

Hence, 60 minutes is the correct answer.

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