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1. |
The average 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. |
A. | 20.4√ó10<sup>9</sup> times |
B. | 2.5√ó10<sup>9</sup> times |
C. | 2.2√ó10<sup>9</sup> times |
D. | 6.1√ó10<sup>9</sup> times |
Answer» D. 6.1‚Äö√†√∂‚àö‚â•10<sup>9</sup> times | |