Multiple choice

A clock is set at 10 am. The clock gains 10 minutes in 24 hours. What will be the right time when the clock indicates 3 pm on the following day?

  1. 12.40 pm

  2. 1.40 pm

  3. 2.40 pm

  4. 2.48 pm
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The clock gains 10 minutes in 24 hours. From 10 am to 3 pm the next day is 29 hours. The gain in 29 hours is (10/24) * 29 = 12.083 minutes. The clock shows 3:00 pm, but it is actually 2:47.9 pm, which is approximately 2:48 pm.

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