Hari sells 6 eggs at Rs. 24. He buys 10 eggs at Rs. 30. What is his profit or loss%?

\(x\%\) of \(x\) is the same as 20% of

A shopkeeper bought candy at 10 for a rupee. How many for a rupee must he sell to gain 25%?

The average of the four consecutive odd numbers is 16. What is the difference between fourth and first?

A sum becomes its double in 15 years. Find the annual rate of simple interest:

If 50% of a number is equal to 1/5 th of another number, what is the ratio of the first number to the second number?

Simple interest of Rs. 20000 for 8 years at 6% PA is equal to the simple interest on Rs. 16000 at 3% PA for a fixed period. The time period is

If \(2^{x-1} + 2^{x+1} = 1280\), then find the value of \(x\)

P can lay railway track between two given stations in 15 days and Q can do the same job in 10 days. With help of R, they did the job in 4 days only. Then, R alone can do the job in: