Average Practice Test 3

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