Let the cost price be ₹x. Marked price = 1.5x. Selling price after 20% discount = 1.5x × 0.8 = 1.2x. Profit = ₹150, so 1.2x − x = 150. 0.2x = 150 ⇒ x = 750. Ans. d
Length of a rectangle is equal to the side of a square. If area of the square and rectangle is 729 m2 and 297 m2, respectively the...
On a rectangular wall of length 28 metres and height 23 metres, there is a window in the shape of triangle surmounted on a square. If the base of triang...
A right circular cylinder of height 12 cm is covered by a rectangular sheet of aluminum foil of size 12 cm × 31.4 cm. Calculate the volume of the cylin...
A wire is in the form of square with side 11 cm. It is bent to form a circle. What is the radius of the circle?
18 × 15 + 86 – 58 = ? + 38
The common ratio of a geometric sequence is 3 and the 4th term is 9. What is the first term of the sequence?
A cylinder has a radius of 4 cm and a height of 10 cm. A cone with the same radius is placed inside the cylinder, touching the bottom and the sides. If ...
The curved surface area of the sphere is 154 cm2 . Find the volume of the sphere (rounded off to one digit after decimal).
The volume of water measured on a rectangular field 400m 200m is 8000 . Find the depth (amount) of rain that has fallen.
If the radius of a circle is given up to 15 times, how much of its perimeter will be the perimeter of the previous perimeter?
