Start learning 50% faster. Sign in now
Ernest Hackel proposed the term "ecology" in 1866. The word "ecology" is derived from the Greek words 'oikos,' meaning habitat, and 'logos,' meaning study.
The volume of a solid cube is 1331 m3. If whole cube is to be painted at a rate of Rs. 4.5 per m2, then what will be the cost of p...
B is 25 percent more than C and C is 73 percent less than D. If B is 729, then what is the value of D?
A rectangle with a diagonal of length 28m is inscribed in a circle. Find the area of a circle?
A giant circular wheel has a diameter of 28 metres. In how many revolutions will the wheel cover a total of 11 km?
The length of a rectangle is twice its breadth. If its length is decreased by 6 cm and breadth is increased by 6 cm, the area of the rectangle is increa...
The circumference of two circles are 132 cm and 88 cm respectively. What is the difference between the area of the larger circle and the smaller circle?
A wire is moulded into a circle of radius 21 m. Then the wire is bent and shaped into a rectangle of length 36 m. Find the area of the rectangle thus fo...
A chord of the larger among two concentric circles is of length 10 cm and it is tangent to the smaller circle. What is the area (in cm²) of the annula...
A solid sphere has a radius of 7 cm. A hemisphere is removed from the sphere. What is the volume of the remaining part of the sphere?
The lateral surface area of a cube is 144 cm2 . The length of a cuboid is 25% more than the side of the cube. The breadth of the cuboid is 5 ...