A cottage industr

Number of toys produced that day is ‘x’.

Cost of production of each toy (in rupees) was found to be 55 minus the number of articles produced in a day.

∴ Cost of production of each toy = 55 – x

Given, total cost of production = Rs. 750

⇒ x × (55 – x) = 750

⇒ -x² + 55x – 750 = 0

⇒ x² – 55x + 750 = 0