Question

If the cost of a table and 2 chairs is $\$$90, and the cost of 1 table and 3 chairs is $\$$110, then the cost of a table is

• A. ₹40
• B. ₹50
• C. ₹60

Answer 1

The correct option is B ₹50

It is given that the cost of a table and 2 chairs = ₹90

And the cost of a table and 3 chairs = ₹110

Let, t be the cost of a table and c be the cost of a chair.

Therefore,

t + 2c = 90 ............(1)

t + 3c = 110 .............(2)

Subtracting equation 1 from equation 2, we get

c = ₹20

Substitute the value of c in the equation1 , we get

t + 2(20) = 90

$⟹$ t = 90 - 40 = 50

Hence, the cost of a table = ₹50