Question

The cost of five chairs and three tables is Rs 3110. The cost of one chair is Rs 210 less than the cost of one table. What is the cost of two tables and two chairs?

• A. Rs 1660
• B. Rs 1860
• C. Rs 2600
• D. Cannot be determined
• E. None of these

Answer 1

The correct option is A Rs 1660

If the CP of 1 chair is Rs x, then CP of 1 table = Rs (x + 210)
$\therefore 5x+3(x+210)=3110$
$\Rightarrow 5x+3x+630=3110$
$\Rightarrow 8x=3110-630=2480$
$\therefore x=\frac{2480}{8}=310$
$\therefore$ CP of two tables and two chairs
$=3(x+x+210)=4x+420$
$4\times 310+420=Rs1660$