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 articles produced in a day. On a particular day, the total cost of production was Rs. 750. If `x` denotes the number of toys produced that day, form the quadratic equation to find `x` .

Represent the following situations mathematically: (i) John and Jivanti together have 45 marbles. Both of them lost 5 marbles each, and the product of the number of marbles they now have is 124. We would like to find out how many marbles they had to start with. (ii) 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.

Represent the following situations mathematically: (i) John and Jivanti together have 45 marbles. Both of them lost 5 marbles each and the product of the number of marbles they now have is 124. We would like to find out how many marbles they had to start with. 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 particaular day, the total cost of production was RS.750. We would like to find out the number of toys produced on that day.

A cottage industry produces a certain number of pottery articles in a day.It was observed on a particular day that the cost of production of each article (in rupees) was 3more than twice the number of articles produced on that day.If the total cost of production on that day was Rs the cost of each article.

A factory requires 42 machines to produce a given number of articles in 56 days. How many machines would be required to produce the same number of articles in 48 days?

A factory requires 42 machines to produce a given number of articles in 63days.How many machines would be required to produce the same number of articles in 54 days?

A factory produces electric bulbs. If 1 out of every 10 bulbs is defective and the factory produces 630 bulbs per day, find the number of defective bulbs produced each day.

The bar graph shows the number of toys produced by a factory during a certain week. What is the total number of toys produced during the week ?

If 2 persons working 2 hours a day for each of 2 days produce 2 articles,then the number ofarticles produced by 4 persons working 4 hours a day for each of 4 days is

On the first day of the sale of tickets of a drama, in all 35 tickets were sold. If the rates of the tickets were Rs. 20 and Rs. 40 per ticket and the total collection was Rs. 900. Find the number of tickets sold at each rate.