Question

2 tables and 3 chairs together cost.WHILE 1 CHAIR AND 2 TABLES COST OF 640???

Answer 1

Solution:-

let》 1 table cost = x , 1 chair cost= y

acourding to quetion:-

2x -3y = 0...........(1)

2x+y = 640..........(2)

by substraction
__________________

- 4y = -640

(y = 160)

y's value put in eq (1)

2x = 160×3

(x = 240)ans

chair and table cost is 160 and 240