Let the average expenditure of all the nine be Rs x. Average expenditure of 9 persons = 2,120 × 9 = Rs 19,080 Average expenditure of the remaining two persons = 2(212 + x) = Rs 424 + 2x Then 19,080 + 424 + 2x = 11x 19,504 + 2x = 11x 19,504 = 9x 2,167.11 = x ∴ Total money spent by all of them = Rs 11x = Rs 11 × 2,167.11 = Rs 23,838.22 = Rs 23,838 approximately