A seller uses 920 gm in place of one kg to sell his goods. When he sells his articles at 15% gain on cost price, the actual percentage of profit is :

The ratio between heights of two-cylinder is in the ratio of 3:5. Their volumes are in the ratio 27:80. Find the ratio between their radius.

3 4 10 33 136 ? 183

If the sum of the squares of three consecutive natural numbers is 110, then the smallest of these natural numbers is:

Two years ago, the average age of Aman and Shyam was 26 years. Five years hence, the age of Aman will be 40 years and Shyam is 5 years younger than Mohan, then find the difference between the age of Aman and Mohan.

The total average salary of 50 employees in a company is Rs 5,000. If there are 35 male employees among these employees whose average salary is Rs 6,000, then what will be the average salary of the remaining female employees?

The value of a machine depreciates at the rate of 10% per annum. It was purchased 3 years ago. If its present value is Rs.53071.20, the purchase price of the machine was:

A basket contains 300 mangoes. 75 Mangoes were distributed among some student. Find the percentage of mangoes left in the basket.