Question

# A 12 dial clock has its minute hand defective.Whenever it touches dial 12, it immediately falls down to 6 instead of running smoothly (the hour hand remains unaffected during that fall). It was set right at 12 '0' clock in the noon. What was the actual time when the minute hand of the clock touched dial 9 for the 5th time?

A
2 : 15
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B
3 : 00
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C
5 : 15
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D
6 : 45
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Solution

## The correct option is C 2 : 15The clock will take two turns to complete an hour because only 30 minutes are functional in the said clock. In one hour the minute arm will touch 9 two times. In two hours it'll touch 9 for 4 times. In the fifth time the minute arm will fall to 6 and run for 15 minutes until it touches 9. So the time would be 2:15 pmOption A is the correct answer

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