Question

3 chair and 2 table cost is 5,400. 4 chair and 3 table cost is 7,800 find the cost of 2 chair and 5 table​

Answer 1

Answer:

₹10200

Step-by-step explanation:

let cost of a chair be x and cost of a table be y

=By frist conditions

3x+2y=5400 --------(1)

=By second conditions

4x+3y=7800----------(2)

let multiple equation (1)by 3 and equation (2)by 2 and subtract equation (3) and (4)

9x+6y=16200---------(3)

-- 8x+6y=15600---------(4)

-------------------

x =600

put x=600 in equation (1)

3(600)+2y=5400

=1800+2y=5400

=2y=5400-1800

=2y=3600

=y=3600/2

=y=1800

let cost of one chair=x=₹600 and cost of one table=₹1800

cost of 2 chair and 5 table

=2x+5y

=2(600)+5(1800)

=1200+9000

=10200 rupees