Question

In the month of March of 2014, the average daily expenditure of a student was Rs. 136. For the first 15 days of the month, the average daily expenditure was Rs. 170 and for the last 17 days, Rs. 102. Find the amount spent by the student on the 15th of the month.
A) 68
B) 79
C) 85
D) 92

Answer 1

please give the Question clearly