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30 November, 20:30

An adult blinks about 450 times in 30 minuets. a twelve year old blinks about 150 times in 15 minuets. how many more times does an adult blink in 60 minuets than a twelve year old?

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  1. 30 November, 20:45
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    If an adult blinks 450 times in 30 minutes, then he will blink 900 times in 60 minutes.

    A 12-year old blinks 150 times in 15 minutes, so he will blink (150 x 4) in 60 minutes, which comes out to: 600.

    so 900-600

    An adult blinks 300 times more in 60 minutes than a 12-year old.
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