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The average price of 80 mobile phones is Rs. 30,000. If the highest and lowest price mobile phones are sold out then the average price of remaining 78 m...
A hollow sphere of external and internal diameters of 10 cm and 6 cm, respectively, is melted and made into another solid in the shape of a right circul...
If the two adjacent sides of a rectangle are x cm and x – 10 cm and its perimeter is 72 cm then find its area?
The ratio between the number of sides of two regular polygons is 1 : 2 and the ratio between their interior angle is 2 : 3. Then the number of sides of ...
The distance between the centers of two circles of radius 2 cm and 8cm is 10 cm. Find the length of the direct common tangent.
A kid has toys of three different shapes and he has labelled them as 'A', 'B' and 'C'. The following is also known about the toys: (Take π = 22/7)
...In an examination the average marks of Rohit is 55. If he got 15 more marks in science and 27 more marks in maths then his average would have been 61. F...
The surface areas of three faces of a cuboid sharing a vertex are given as 25 m², 32 m² and 32 m². What is the volume of the cuboid?
A cuboid has dimensions 12 cm, 8 cm, and 6 cm. If all the dimensions are increased by 50%, what will be the percentage increase in the volume of the cub...
A right triangle ABC with sides 9 cm ,12cm and 15cm is revolved about the side 12 cm. What is the volume of the solid so obtained?
