If the radius of a circle is increased by 25%, its area increases by:

Suresh goes on a trip on his motor-cycle and rides for 410 kms. If he rides for 5 hours at a speed of 50 km/hr, find at what speed he travels for the remaining 4 hours of the journey?

There is 40% increase in an amount in 5 years at simple interest. What will be the compound interest of Rs. 25000 after 3 years at the same rate?

One internal angle of a rhombus of side 12 cm is 120°. What is the length of its longer diagonal?

The length, breadth and height of a cuboid are 10 cm, 6 cm and 4 cm respectively. What is the total surface area?

The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is

On dividing a number by 47, we get 75 as quotient and 18 as remainder. What is the number?

The bus fare between two cities is increased in the ratio 1:2. Find the increase in the fare, if the original fare is Rs. 175.