A watch goes fast by 15 minutes compared to the right time everyday. If it is corrected and set to the standard time at 120' clock at noon, which of the following will be the time shown by it at 4:00 a.m. in the morning?

Deepika • 5.41K Points
Tutor III Math

Q. A watch goes fast by 15 minutes compared to the right time everyday. If it is corrected and set to the standard time at 120' clock at noon, which of the following will be the time shown by it at 4:00 a.m. in the morning?

(A) 3:45 a.m.
(B) 4:10 a.m.
(C) 4:15 a.m.
(D) 4:30 a.m.

Correct Answer - Option(B)

Explanation by: Deepika

Duration from 12 noon to 4:00 a.m. = 16 hours.

Time gained in 24 hours = 15 min.

Time gained in 16 hours = (5/24 × 16) min = 10 min.

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