Question

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

• A.
• B.
• C.
• D. None of these

Answer 1

The correct option is C

${10}^6$ rupees are spent in 1sec. $\therefore 6.022\times {10}^{23}$ rupees are spent in $\frac{(1\times 6.022\times {10}^{23})}{({10}^6\times 60\times 60\times 24\times 365)}years=19.098\times {10}^{9}year$