A clock is set right at 5 A.M. The clock loses 16 minutes in 24 hours. What will be the true time when the clock indicates 10 P.M. on the 4th day?

A11 A.M.

B11 P.M. ✓ Correct

C9 P.M.

D10 P.M.

Correct answer: (B) 11 P.M.

Explanation

The true time is 11 P.M.

From 5 A.M. day 1 to 10 P.M. day 4 the clock shows 89 hours.

The clock records 1424 min for every 1440 true min (loses 16).

True time = 89 x 1440 / 1424 = 90 hours.

90 hours after 5 A.M. is 11 P.M. on day 4.

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