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The avarage life of an Indian is 56 year...

The avarage life of an Indian is 56 years .Find the number of times the human heart beats in the life of an Indian ,If the heat beats once in 0.8 s.

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SL ARORA-PHYSICAL WORLD AND MEASUREMENTS-Based on Combination
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  13. The radius of a sphere is (5.3 +- 0.1)cm The perecentage error in its ...

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  14. The measure of the diameter of a cylinder is (1.60 pm 0.01) cm and it...

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