Holmes and Watson had set their pocket watches to the same time. Unknown to them, Watson's watch was running exactly two minutes per hour slow, and the watch belonging to Holmes was going exactly a minute per hour too fast. Later, when they checked their watches again, it was discovered that the watch belonging to Holmes was exactly one hour ahead of Watson's watch.
How long had it been since they had originally set their watches?
How long had it been since they had originally set their watches?
20 hours
ReplyDelete+soumya Khanna ......you are exactly right !!
Deletesherlock's watch + watson's watch
ReplyDelete(2mins x 20hrs) + (1mins x 20hrs)
40 mins + 20 mins
thrfore 20hrs