Question

If 3 chairs & a table cost Rs. 900 and 5 chairs & 3 tables cost Rs. 2100 , then the cost

of 5 chairs & a table is ….​

Answer 1

Answer:

1050 rupees

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Lets assume

• Cost of 1 chair = x
• Cost of 1 table = y

ATQ

• 3x + y = 900 _(i)
• 5x + 3y = 2100 _(ii)

Solving Above Eqn., we get

• y = 900 - 3x

• 5x + 3(900 - 3x) = 2100
• 5x + 2700 - 9x = 2100
• 4x = 600
• x = 150

• y = 900 - 3*150 = 450

ANSWER

• Cost of 1 chair = Rs. 150
• Cost of 1 table = Rs. 450

NOW

Cost of 5 chair & a table =

• 5x + y
• 5*150 + 450
• 750 + 450
• Rs, 1200