A watch which gains 5 seconds in 3 minutes was set right at 7am . In the afternoon of the same day when the true time is 1 pm, the watch will indicate :

A 1:10pm
B 12:55pm
C 1:05pm
D 1:08pm

Correct Answer: 1:10pm

The time difference = 1pm - 7 pm = 6 hour = 360 minutes 3 minute gains from 5 second 1 minute gains from 5/3 second 360 minute gains from (5×360)/3 second = 600 second = 10 minute So, at 1 PM, the watch will indicate = 1PM + 10 minute = 1 : 10 PM
Bissoy MCQ
#গণিত #Bangladesh Bank #Bangladesh Bank - Assistant Director - 2013 #ঘড়ি (Watch)

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