Q. Two clocks are set correctly at 10 am on Sunday. One clock loses 3 min in an hour while the other gains 2 min in an hour. By how many minutes do the two clocks differ at 4 pm on the same day ?
✅ Correct Answer: (B)
20 min
Explanation: Clearly, Raveena left home 10 min before 8 : 40 am i.e., at 8 : 30 am
but it was 15 min earlier than usual,
so she usually leaves for the stop at ( 8 : 30 + 0 : 15 ) = 8 : 45 am.
but it was 15 min earlier than usual,
so she usually leaves for the stop at ( 8 : 30 + 0 : 15 ) = 8 : 45 am.
Explanation by: Tina Singh
Clearly, Raveena left home 10 min before 8 : 40 am i.e., at 8 : 30 am
but it was 15 min earlier than usual,
so she usually leaves for the stop at ( 8 : 30 + 0 : 15 ) = 8 : 45 am.
but it was 15 min earlier than usual,
so she usually leaves for the stop at ( 8 : 30 + 0 : 15 ) = 8 : 45 am.