In a team of 10 persons, nine persons spent ₹40 each

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In a team of 10 persons, nine persons spent ₹40 each for their meal and the remaining one spent ₹9 more than the average expenditure of all the 10 persons. The total expenditure for their meal was

Let the amount spent by tenth person be Rs y,
According to the question,

y –	40 × 9 + y	= 9
	10

⇒	10y - 360 - y	= 9
	10

⇒ 9y – 360 = 90
⇒ 9y = 360 + 90 = 450
⇒ y = 450 ÷ 9 = Rs. 50
∴ Total expenditure = 40 × 9 + y = 360 + 50
Total expenditure = Rs. 410