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1. The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:





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  • By: guest on 01 Jun 2017 05.48 pm
    Let the cost of a chair and that of a table be Rs. x and Rs. y respectively. Then, 10x = 4y   or   y = 5 x. 2 15x + 2y = 4000 15x + 2 x 5 x = 4000 2 20x = 4000 x = 200. So, y = 5 x 200 = 500. 2 Hence, the cost of 12 chairs and 3 tables = 12x + 3y     = Rs. (2400 + 1500)     = Rs. 3900.
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