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Mathematics, 19.08.2019 02:10 jaxheisjax532

An adult blinks about 450 times in 30 min. a 12 year old blinks about 150 times in 15 min. how many more times does an adult blink in 60 min. than a 12 year old?

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An adult blinks about 450 times in 30 min. a 12 year old blinks about 150 times in 15 min. how many...
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