Ten chairs and six tables together cost Rs. 6200, three chairs and two tables together cost Rs. 1900. The cost of 4 chairs and 5 tables is [CDS 2013] |
A) Rs. 3000
B) Rs. 3300
C) Rs. 3500
D) Rs. 3800
Correct Answer: A
Solution :
Let cost of one chair be Rs. x and cost of one table be Rs. y. |
Then, \[10x+6y=6200\] |
and \[3x+2y=1900\] |
Solving for x and y, we get |
\[x=Rs.\,500,\]\[y=Rs.\,200\] |
Cost of 4 chairs and 5 tables |
\[=4\times 500+5\times 200\] \[=2000+1000=Rs.\,3000\] |
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