### Brain Teasers

# It takes a clock

It takes a clock 2 seconds to strike 2 o`clock.

How long will it take to strike 3 o`clock?

How long will it take to strike 3 o`clock?

### Answer

It will take 4 seconds.Since the clock strikes 2 o`clock in 2 seconds, these two seconds are the interval between two strikes. Between the first and the third strike there are two intervals, so it will be 4 seconds.

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