Question

The price of 2 tables and 3 chairs is Rs 340 but a table cost Rs 20 more than a chair find their prices

Answer 1

x= y + 20
x-y=20 multiply by 2
2x+3y=340
2x-2y=40
after subtracting=5y=300
y=60
therfore price of chair =60 
and price of table= 80

Answer 2

Let the cost of chair = x
Cost of table = x+20

Since, cost of 2 tables and 3 chairs = 340 Rs
According to question
2(x+20)+3(x) = 340
2x+40+3x = 340
5x+40 = 340
5x = 340 - 40
5x = 300
x = 300/5
= 60
Cost of a chair = 60 Rs
Cost of a table = 60 + 20
= 80 Rs

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