The price of 10 chairs is equal to that of 4 tables The price of 15 chairs and 2 tables together is ...........

Quantitative Aptitude (CDS) Simplification

The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. Find the total price of 12 chairs and 3 tables are?

7500

7200

7400

7000

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Explanation:

Let the price of one chair is x and one table is y
First statement 10x=4y ....( 1)
Second statement 15x + 2y=4000 .....(2)
Solving both equations
15x+ 5x=4000
X=4000/20
X=200
Y=500
Price of 17 chairs and 8 tables
200× 17 + 500× 8
=3400+4000
=7400 Rs