Three clocks – Ci, C2, and C3 show correct time at 3:00 a.m. Clock C1, uniformly loses 4.5 minutes in an hour, clock C2 uniformly loses 1.5 minutes in an hour and clock C3 uniformly gains 2.5 minutes in an hour. At 11:00 a.m on the same day, by how much time will C1 and C2′ C2 and C3′ C1 and C3 differ respectively?
Answer with explanationAnswer: Option C
The time gap between 3:00 a.m. to 11:00 a.m. is 8 hours.
Ci loses 4.5 x 8 = 36 minutes in 8 hours. Hence it shows 10:24 a.m.
C2 loses 1.5 x 8 = 12 minutes in 8 hours.
Hence it shows 10:48 a.m.
The clock C3 gains 2.5×8 = 20 minutes in 8 hours.
Hence it shows 11:20 a.m.
Ci and C2 differ by 24 minutes.
C2 and C3 differ by 32 minutes and
Ci and C3 differ by 56 minutes.