Let, cost of 1 chair = ₹ x ∴ Cost of 1 table =₹(x+210) According to the question 5x+3(x+210)=3110 ⇒5x+3x+630=3110 ⇒8x=3110–630=2480 ⇒x=
2480
8
=310 ∴ Cost of 1 chair = ₹ 310 Cost of 2 chairs = ₹ 620 Cost of 1 table=310+210=₹520 Cost of 2 tables = ₹ 1040 Hence, cost of two chairs and two tables=₹(620+1040)=₹1660