If by selling 110 apples, the cost price of 120 apples is realised. The gain % is?
The curved surface of a cylinder is 264m². Its volume is 924m³. The height of the cylinder must be:
A rational number between 1/2 and 3/5 is:
A sum of money invested at compound interest amounts in 3 years to 800 and in 4 years to 840 what is the percentage rate of interest?
13 chairs and 5 tables were brought for 8280. If the average cost of the table will be 1227, what is the average cost of a chair?
Perimeter of a circle is equal to the perimeter of a square whose area is 484 cm². What is the radius of the circle?