3 bags and 4 pens together cost Rs 257 whereas 4 bags and 3 pens together cost Rs 324. Find the total cost of 1 bag and 10 pens.

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asked Feb 6, 2018 in Mathematics by sforrest072 (157,439 points) 61 410 939
edited Mar 5, 2018 by faiz

3 bags and 4 pens together cost Rs 257 whereas 4 bags and 3 pens together cost Rs 324. Find the total cost of 1 bag and 10 pens.

1 Answer

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answered Feb 6, 2018 by mdsamim (213,225 points) 5 10 15
selected Feb 6, 2018 by sforrest072
 
Best answer

Let the cost of a bag be Rs x and that of a pen be Rs y . Then,

Multiplying equation (i) by 3 and equation (ii) by 4, we get

Subtracting equation (iii) by equation (iv), we get

Hence, the total cost of 1 bag and 10 pens = 75+80 = Rs 155.

commented Feb 25, 2018 by Samarth Singh (57 points) 1
Super it cannot be to small

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