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A cottage industry produces a certain number of toys in a day. The cost of production of each toy (in rupees) was found to be 55 minus the number of toys produced in a day. On a particular day, the total cost of production was Rs 750. We would like to find out the number of toys produced on that day.

b -4ac
2 / 4
-b± b 2 -4ac a

3 / 4
( a 12 a 13 a 21 a 22 a 23 a 31 a 32 a 33 )
4/4
a - b 4

Score =
Correct answers:

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