1. The cost of 8 fans and 14 ovens is Rs. 36,520. What is the cost of 12 fans and 21 ovens ?
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By: anil on 05 May 2019 01.23 am
Let the cost of a fan = Rs. $$x$$ Cost of an oven = Rs. $$y$$ => $$8x + 14y = 36520$$ Multiplying both sides by $$(frac{3}{2})$$, we get : => $$frac{3}{2} imes (8x + 14y = 36520)$$ => $$12x + 21y = 54,780$$
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