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Start learning 50% faster. Sign in nowLet B joined after ‘x’ months. => 1600 x 12 : (12 - x) x 3200 : 2800 x (12 – x – 2) => 1600 x 12 : (12 - x) x 3200 : 2800 x (10 – x) => 1600 x 12 = (12 - x) x 3200 => 12 – x = 6 => x = 6 C invested his money = 10 – x = 4 months
Find the lateral surface area of a pyramid with a rectangular base measuring 12 meters by 8 meters and a slant height of 18 meters.
<p><p>The area of four walls of a room is 120 cm<sup>2</sup>. If the length and breadth of the room were...
A circular pond is surrounded by a path 2 meters wide. The diameter of the pond is 28 meters. Find the cost of constructing the path at ₹140 per squar...
If the length of certain rectangle is decreased by 4 cm and breadth is increased by 2 cm, it would result in a square of the same area. What is the peri...
A cylinder has a height of 14 cm and a radius of 7 cm. Find the total surface area.
If the radius of the base and the height of a right circular cone are increased by 10%, what is the approximate percentage increase in volume?
What is the difference between (in m2) the area of a circular field of radius 21 metres and area of a rectangular piece of land having its di...
A cylinder of radius 7 cm is surmounted completely by a cone of same radius. Height of cylinder is 6 cm. Find the height of cone if volume of entire sha...
A paper is in the form of rectangular piece PQRS in which PQ = 40 cm and QR = 28 cm. A semi-circular portion with QR as diameter is cut off. Find the ar...
An equilateral triangle ABC is inscribed in a circle with centre O. D is a point on the minor are BC and ∠ CBD = 40°. Find the measure of ∠ ...