Question

the cost of 3 tables and 2chairs is rupees 820.if the cost of the tables is rupees 40more that the chairs,find the cost price of each.​

Answer 1

Answer:

hey!!

Step-by-step explanation:

the cost of 3 tables and 2chairs is rupees 820.if the cost of the tables is rupees 40more that the chairs,find the cost price of each.​

let cost of chairs be x and cost of tables be y

TAQ,

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

given :- the cost of the tables is rupees 40more that the chairs

let's form an equation..............

y=x +40....(2)

substituting (2) in (1),

3(x+40) +2x = 820

3x +120 +2x = 820

5x=700

x=700/5

x=140

So, the cost of CHAIR is 140

and cost of TABLE will be 140+40=180

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:-)

Answer 2

Answer:

Cost of Table = 180 Rs

Cost of Chair = 140 Rs

Step-by-step explanation:

Let the cost of table = x Rs

cost of chair = y Rs

According to question-

Cost of three tables and two chairs is 820 Rs.

So, 3x + 2y = 820    --------------- 1.

Given that-

Cost of table is 40 Rs more than chair.

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

Put x = y + 40 in equation 1

3(y + 40) + 2y = 820

3y + 120 + 2y = 820

5y + 120 = 820

5y = 820 - 120

5y = 700

$y = \dfrac{700}{5}$

y = 140

Put y = 140 in equation 2.

x = y + 40

x = 140 + 40

x = 180

Cost of chair = y

Cost of Chair = 140 Rs

Cost of Table = x

Cost of Table = 180 Rs