ABCD is a parallelogram and ' 0 ' is the point of intersection of its diagonals AC and BD. If  the area of  sq.cm , what is the area of the

A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior. The diameter of the pencil is 7 mm, and the diameter of the graphite is 1 mm. If the length of the pencil is 14 cm, Find the volume of the wood and that of the graphite?

The load capacity of a certain washing machine is 12 pounds. What is the approximate load capacity of the same washing machine, in kilograms?
( 1 kilogram = 2.2046 pounds)

Note:
There are many other units of weight such as ton, ounce, gram, stone, grain, milligram, etc. There is conversion formula for each of these pairs, for eg.
1 kilogram = 35.27 ounce= 0.16 stone= 1000 gram
1 pound= 16 ounce= 0.07 stone= 435.60 gram

The Capacity of a closed cylindrical vessel of height 1m is 15.4 litres. How many square metres of metal sheet would be needed to make it?

Babu left one-third of his property to his son, one-fourth to his daughter and the remainder to his wife. If his wife's share is Rs 1,80,000, what was the value of his property?

Ram's mother is four times as old as Ram now. After sixteen years, she will be twice as old as Ram. Find their present ages.

Tanay obtained 98 marks in a mathematics test. His score is the highest in the class and it is also 8 more than three times the lowest score. Create the equation and calculate the lowest score.

Find three consecutive odd numbers whose sum is 159.

Solve 3x - 2y = 6 and 

Solve the following by substitution method 2x - 3y = 7 and x + 6y = 11.

Solve the following by using elimination method: 2x + y = 6 , 3y = 8 + 4x

Solve 2a – 3/b = 12 and 5a – 7/b = 1

Solve the following equations by using the elimination method: x - y = 1 , 3x - y = 9

Solve the following system of linear equations: 2x - 4y = 6 , x - 3y = 12

Solve: x - 2y = 8 , 4x + 2y = 7 by using elimination method.