How many times does a typical person blink her eyes in a lifetime? mastering physics?

An average person blinks once for every five seconds. this makes it 12 or a minute, which makes 720 times an hour. Multiply this with 24 we get number of blinks for a day i.e., 17,280. Multiply with 365 we get the result for an year, that is 6,307,200. Since we got the blinks for a year we multiply with the number of years the average man lived to get the number of blinks for the lifetime. Let’s assume a typical man lives for 75 years, then the number of times one blinks is 473,040,000.

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