SSC Sample Paper Mock Test-2 SSC CGL Tear-II Paper-1

10 chairs and 6 tables together cost Rs. 6200, 3 chairs and 2 tables together cost? 1900. The cost of 4 chairs and 5 tables is

A) Rs. 3000

B) Rs. 3300

C) Rs. 3500

D) Rs.3800

Correct Answer: A

Solution :

Let the cost of one chair = Rs. x

and cost of one table = Rs. y

By given condition,

\[10x+6y=6200\] ?(i)

and \[3x+2y=1900\]

\[\Rightarrow \] \[9x+6y=5700\] ?(ii)

On subtracting Eq. (ii) from Eq. (i), we get

x = Rs. 500

From Eq. (i),

\[5000+6y=6200\]

\[\Rightarrow \] \[6y=1200\]

\[y=200\]

\[\therefore \]The cost of 4 chairs and 5 tables

\[=4x+5y=4\times 500+5\times 200\]

\[=2000+1000=\] Rs. 3000