The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:

Correct Answer: Rs. 3900

Explanation:

Let the cost of a chair and that of a table be Rs. x and Rs. y respectively.

Then, 10x = 4y or y =	5	x.
	2

∴ 15x + 2y = 4000

⟹ 15x + 2 x	5	x = 4000
	2

⟹ 20x = 4000

∴ x = 200.

So, y =	❨	5	x 200	❩	= 500.
		2

Hence, the cost of 12 chairs and 3 tables = 12x + 3y

= Rs. (2400 + 1500)

= Rs. 3900.

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