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Start learning 50% faster. Sign in nowLet the sum invested and simple interest received be Rs.25x and Rs.7x respectively. Let the rate of investment be r% p.a. Therefore, {(25x x 1 x r)/100} = 7x => r = 28%
The perimeter of a sector of a circle, whose radius is 15 cm, is 61 cm. If the length of a rectangle is 10 cm more than the arc subtended by the sector ...
A pipe fills a cubical tank at the rate of 243 m3 per minute in 24 minutes. If a cylindrical tank having height same as the side of a cubical...
A cylindrical tank with a height of 12 meters and a radius of 7 meters is filled with water. It has a leakage at the bottom that drains water at a rate ...
The lateral surface area of a cube is 324 cm2 . The length of a cuboid is 50% more than the side of the cube. The breadth of the cuboid is 9 ...
The circumference of a circle is 44 cm and the length of the rectangle is 5 times the radius of the circle. Find the area (in cm2) of the rec...
Length of a rectangle is equal to the side of a square. If area of the square and rectangle is 784 m2 and 336 m2, respectively the...
Find the surface area of the smallest cube that can perfectly fit a sphere of volume 12348π cm3 inside it.
The radii of two solid right circular cylinders are 11 cm and 9 cm respectively and their heights are (h+1) cm and (2h+1) cm respectively. If the areas ...
There is a rectangular paper, whose length and breadth are in the ratio 6:7, respectively and it has a perimeter of 78 metres. If a triangular piece wit...
