If the circumference of a circle is 88 cm, then what must be its area (in cm2)?

The perimeter of a square is 22 cm. Find its area (in cm2).

The pie chart shows the distribution of wealth between 7 children according to their father's will. Study the diagram and answer the following questions.

If 40% wealth tax has to be paid on the wealth that each child receives then how much wealth tax (in Rs lakhs) does C have to pay?

The pie chart shows the distribution of wealth between 7 children according to their father's will. Study the diagram and answer the following questions.

The measure of the central angle of the sector representing the share of wealth that D gets is ________ degrees.

The pie chart shows the distribution of wealth between 7 children according to their father's will. Study the diagram and answer the following questions.

What is the total wealth (in Rs lakhs) of the father which was distributed according to the will?

The pie chart shows the distribution of wealth between 7 children according to their father's will. Study the diagram and answer the following questions.

Which child got the least share of wealth according to the will?

Rohit crosses a 700 metres wide road in 35 seconds. What is his speed (in km/hr)?

Two pipes P and Q can fill an empty tank in 25 hours and 20 hours respectively. Pipe R alone can empty the completely filled tank in 50 hours. Firstly both the pipes P and Q are opened and after 8 hours pipe R is also opened. What will be the total time (in hours) taken to completely fill the tank?