Question

the cost of 3 tables and 2 chairs is Rupee 820 if the cost of table is rupees 40 more than the chair find the cost price of each​

Answer 1

Answer:

cost of chair = 140

cost of table = 180

Step-by-step explanation:

let cost of 1 table= x

    cost of 1 chair = y

ATQ,

3x + 2y = 820 ........................................1

x = y + 40 ........................................2

2*3

 ⇒ 3x = 3y + 120..................................3

frm 1 and 3

3y + 120 + 2y = 820

5y = 700

            ∴    y = 140

frm 2

          ⇒      x = 180

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Answer 2

let the cost of one chair be x

so cost of table = x+40

it is given that 3 tables and 2 chairs cost rupees 820

therefore 3(x+40) + 2(x)=820

3x+120 +2x =820

5x=700

x=140= cost of one chair

and cost of one table =140+40=180