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 128. Form the quadratic equation to find how many marbles they had to start with, if John had `x` marbles.

Deepak and Sudhir together have 26 marbles. Both of them lost 3 marble each, and the product of the number of marbles they now have is 91. Represent it as a quadratic equation.

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.

In a bag, white marbles and red marbles are in the ratio of 5:3 . If the number of red marbles are 150, then how many white marbles are there?

A boy has given 7//12 of his marbles to his friend and is left with only 20 marbles. Find how many marbles he had with him initially

The ratio of the number of marbles that Joyee and Minati had was 5 : 8 while the ratio of the number of marbles that Jacob and Minati had was 7 : 12. What is the ratio of the number of marbles that Joyee and Jacob had?

If John has n marbles and loses five of them in a game, then the number of marbles left with him is equivalent to which of the following expressions?

Amar ,Bhuvan and Chetan have some marble with them. Bhuvan has 20% more marbles than Amar and Chetan has 10% less marbles than Bhuvan . If the total number of marbles with them is 328 then find the number of marble with Bhuvan.

A train travels 360km at a uniform speed.If the speed had been 5km/hr more,it would have taken 1 hour less for the same journey. Form the quadratic equation to find the speed of the train.