The cost of 3 chairs and 10 tables is Rs 9856. What is the cost of 6 chairs and 20
tables? Choose the correct answer:	A) Rs 17227	B) Rs 18712	C) Rs 19172	D) Rs 19712	E) None
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   ⇒ 2 × (3x + 10y) = 2 × 9856   ∴ 6x + 20y = Rs 19712   Answer Rs 19712
<result>D</result>
The cost of 3 chairs and 10 tables is Rs 9856. What is the cost of 6 chairs and 20
tables?