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1 / 4

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.

$$\sqrt{b^{\mathrm{<input\; type="text"\; name="q1"\; size="2"\; value="">}}-4ac}$$

2 / 4

$$\frac{-b\pm \sqrt{b^2-4ac}}{\mathrm{<input\; type="text"\; name="q2"\; size="1"\; value="">}a}$$

3 / 4

$$\left(\begin{array}{ccc}\mathrm{<input\; type="text"\; name="q3"\; size="1"\; value="">}& a_{12}& a_{13}\\ a_{21}& a_{22}& a_{23}\\ a_{31}& a_{32}& a_{33}\end{array}\right)$$

4/4

$$\sqrt{a^{\mathrm{<input\; type="text"\; name="q4"\; size="1"\; value="">}}-b^4}$$

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