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Question

How many years it would take to spend Avogadro's number of rupees at the rate of 1 million rupees in one second:


  1. 19.098×1019 years

  2. 19.098 years

  3. 19.098×109 years

  4. None of these


Solution

The correct option is C

19.098×109 years


106 rupees are spent in 1sec. 6.022×1023 rupees are spent in =
= (1×6.022×1023)(106×60×60×24×365)years
= 19.098×109year

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