Nine friends have dinner in a hostel. Eight of them spent ₹ 12 each on their meals and the ninth spent ₹ 16 more than the average expenditure of all the nine. Find out the total money spent by them?

₹ 126
₹ 135
₹ 111
₹ 141

Correct Answer: ₹ 126

Explanation:

Let average expenditure of 9 persons = x.
According to the question,
12 x 8 + (x + 16) = 9x
⇒ 8x = 112
⇒ x = 112/8 = 14
∴ Total money spent = 9x = 9 x 14 = ₹ 126

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