The cost of 3 chairs and 10 tables is Rs.9856. What is the cost of 6 chairs and 20 tables? (a) Rs.17227 (b) Rs.18712 (c) RS.19172 (d) Cannot be determined (e) of these
(e) Let the cost of one chair be Rs.x and that of a table be = Rs.y
According to the question,
3x + 10y = Rs.9856
or, 2 × (3x + 10y) = 2 × 9856
6x + 20y = Rs.19712
