19 friends went to a restaurant for a combined weekend dinner party. 13 of them spent Rs. 79 each on their dinner and the rest spent Rs. 4 more than the average expenditure of all the 19. What was the total money spent by them?
Solution
Correct Answer: Option D
Let average expenditure was Rs. R
13 \(\times\) 79 + 6x(R + 4) = 19R
=> R = Rs. 80.84
Total money = 19 \(\times\) 80.84 = Rs. 1536.07.
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