Quantity of water in the mixture before 20 litres water was added = 40 - 20 = 20 litres Quantity of water in the 20 litres mixture that was sold = 20 X 0.2 = 4 litres So, total quantity of water in the original mixture = 20 + 4 = 24 litres So, total quantity of original mixture = 24 ÷ (1 - 0.8) = 120 litres
The lateral surface area of a cube is 484 cm2 . The length of a cuboid is 10% more than the side of the cube. The breadth of the cuboid is 9 ...
Melting a metal ball of radius 3 units, 27 identical dice and a ball of radius 1 units are made. What is the side of dice?
When a smaller number divides a larger number, we get a quotient of 6 and a remainder of 5. Find the smaller number if the difference between the two nu...
The area of two similar triangles is 400 cm² and 324 cm², respectively. What is the ratio of their corresponding altitudes?
The Height of a metallic hollow cylinder is 28 cm and the difference between its inner curved surface Area and outer curved Surface area is 66cm². If t...
The length of a rectangle, area of which is 105 cm2, is equal to the radius of a circle of area 1386 cm2. Find the perimeter of th...
Two third part of cylinder is full of water. When we tilt the cylinder in such a way that the water becomes diagonal shape, in this process 87.5 litre o...
Outer diameter of 20 cm long pipe is 25 cm. If the thickness of the metal in the pipe is 1 cm. Find the total surface area of the pipe?
If the ratio of areas of two circle is 4:9, then the ratio of their circumferences will be:
