A man bought 13 articles at ₹ 70 each, 15 at ₹

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A man bought 13 articles at ₹ 70 each, 15 at ₹ 60 each and 12 at ₹ 65 each. The average price per article is

We can find the required average with the help of given formula ,
Here, n₁ = 13 , a₁ = 70
n₂ = 15 , a₂ = 60 , n₂ = 12 , a₂ = 65

∴ Average =	n₁a₁ + n₂a₂ + n₃a₃
	n₁ + n₂ + n₃

Required average price =	13 × 70 + 15 × 60 + 12 × 65
	13 + 15 + 12

Required average price =	910 + 900 + 780
	40

Required average price =	2590	= ₹ 64.75
	40