tions from the following:
(i) A cottage industry produces a certain number of potteries in a day. It was found
that the cost of production of each article ₹5was more than twice the number of
potteries produced in a day. If the cost of production on that day was 168, find
the number of potteries produced.
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let the no. of potteries be x
price of each article =2x+5
total cost = x( 2x+5)
therefore
2x²+5x=168
2x²+5x-168=0
2x²-16x+21x-168=0
(x-8)(2x+21)=0
therefore
x=8 or x=-21/2
negative is not acceptable
therefore x=8
hence the number of potteries is 8
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