if it takes 60 seconds to complete one round around the clock what would be the time required to complete 1200 rounds of…

X and Y invest Rs.21000 and Rs.17500 respectively in a business. At the end of the year, they make a profit of Rs.26400.…

Half percent, written as a decimal, is

The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the…

The rate at which a sum becomes four times of itself in 25 years at S.I.,will be:

The average age of a class of 22 students is 21 years. The average increased by 1 when the teacher's age also included. …

The length of a room is 5.5 m and width is 3.75 m. Find the cost of paving the floor by slabs at the rate of Rs.800 per …

If each edge of a cube is increased by 50%, find the percentage increase in its surface area.