Question

The clock of municipal tower gained uniformly. On Monday morning at 6 a.m. the clock was set 10 minutes slow. On Thursday morning at 6 a.m. it is observed that the clock is fast by 10 minutes.
When did the clock show the correct time during this time period?

• A. Tuesday 6.00 p.m.
• B. Tuesday 9.00p.m.
• C. Tuesday 6:00 a.m.
• D. Wednesday 1:00 a.m.
• E. None of these

Answer 1

The correct option is A Tuesday 6.00 p.m.

In 72 hours, the clock went from 10 minutes slow to 10 minutes ahead.
So, the clock would show exact time 36 hours after 6 a.m. Monday morning.
Tuesday 6 p.m.