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In the lifespan of a 75-year-old person, how many times did the person's heart beat?

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Question

In the lifespan of a 75-year-old person, how many times did the person's heart beat?

Short Answer
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Solution

Assuming an average heart rate of 75 beats per minute: 75 × 60 × 24 × 365 × 75 = 2,956,500,000 beats. Thus, the heart beats approximately 3 billion times in 75 years.

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Chapter 8: Circulatory System - Intex Quesions [Page 136]

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Lakhmir Singh Biology [English] Class 10 ICSE
Chapter 8 Circulatory System
Intex Quesions | Q 2. | Page 136
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