Two wall clocks in a railway booking office were set right at 12 noon. Clock A gains 4 minutes every hour and clock B loses 1 minute every hour. Later that afternoon they read as shown. What is the correct time?

Question

Accepted Answer

4:00 p.m.. A shows 4:16 and B shows 3:56, 20 minutes apart. They drift apart by 4+1=5 min each hour, so 205=4 hours have passed: the correct time is 4:00 p.m. (Check: A is 16 min fast, B is 4 min slow.)

Two wall clocks in a railway booking office were set right at 12 noon. Clock A gains 4 minutes every hour and clock B loses 1 minute every hour. Later that afternoon they read as shown. What is the correct time?

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