Question 70

Ravi buys 5 pens at ₹150 each, 2 pencils at ₹100 each, and 3 notebooks at ₹250 each. What is the average expenditure incurred by Ravi per article?

Solution

Ravi buys 5 pens at ₹150 each, 2 pencils at ₹100 each, and 3 notebooks at ₹250 each.

Total expenditure = $$5\times150+2\times100+3\times\ 250$$

= $$750+200+750$$

= 1700

Average expenditure incurred by Ravi per article = $$\frac{Total \ expenditure}{number \ of \ articles}$$

= $$\frac{1700}{5+2+3}$$

= $$\frac{1700}{10}$$

= 170

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