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Let actual marks scored by A and B be 12x and 5x respectively. Difference between the marks scored by A and B = 12x – 5x = 7x According to question, => (5x + 5) × 1.2 = 12x => 6x + 6 = 12x => 6x = 6 => x = 1 Required difference = 7x = 7
The base and height of a triangle measure 20 cm and 10 cm, respectively. The triangle's area is the same as that of a rectangle with a length of 25 cm....
The length, breadth and height of a solid cuboidal box are in the ratio 7 : 5 : 3 and its total surface area is 11502cm2. Its breadth is:
In a rectangular floor of length and breadth of 16 metres and 7 metres, respectively, square tiles each of 4 metre edge length are to be laid. If the co...
The lateral surface area of a cube is 196 cm2 . The length of a cuboid is 50% more than the side of the cube. The breadth of the cuboid is 3 ...
The sum of the perimeters of a square and a rectangle is 120 metres. If the sum of the length and breadth of the rectangle is 28 cm, then find the area ...
If the length of certain rectangle is decreased by 4 cm and breadth is increased by 2 c, it would result in a square of the same area. What is the perim...
A cylindrical tank of 28 cm base radius is partly filled with water. How many bullets of 1cm radius of iron is added in it in order to increase the wate...
A wooden box measures 20cm by 12cm by 10cm. Thickness of wood is 1 cm. volume of wood to make the box is.(in cm 3 )
Two sides of the triangle are 14.8 cm and 10 cm. If height of the triangle corresponding to 14.8 cm side is 8 cm find the area?
...The difference between the length and breadth of a rectangle is 19 m. If its perimeter is 198 m, then its area is
