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

Options

A. `19.098 times 10^(19)` years
B. 19.098 years
C. `19.098 times 10^(9)` years
D. None of these

Answer

c

Explanation

`10^(6)` rupees are spent in 1 sec.
`therefore 6.023 times 10^(23)` rupees are spent in
`=(1 times 6.023 times 10^(23))/10^(6)` sec
`=(1 times 6.023 times 10^(23))/(10^(6) times 60 times 60 times 24 times 365)` years,
`=19.098 times 10^(9)` year