Mathematics Past Questions and Answers

A salesman has the liberty to sell a hair dryer in his store at a price between Rs. 300 and Rs. 700. Profit earned by selling the hair dryer for Rs. 650 is twice the loss incurred when it is sold for Rs. 350 . What is the cost price of the hair dryer?

Ronald and Elan are working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?

A rectangular field measures \(24\text{ m}\) by \(18\text{ m}\). Find the length of the diagonal.

Solve:<br/>\[<br/>\frac{3x-5}{4}=7<br/>\]

A cylindrical tank has radius \(7\text{ cm}\) and height \(10\text{ cm}\). Find its volume. \(\left(\pi=\frac{22}{7}\right)\)