Question
If X = 75% of Y and Y = 125% of Z, then find the ratio
of X to that of Z.Solution
X = (3/4) X Y Or, X:Y = 3:4 Let, 'Y' = '20x' So, X = (3/4) X 20x = 15x Y = (5/4) X Z Or, 20x = (5/4) X Z Or, Z = 20x X (4/5) = 16x So, X:Z = 15x:16x = 15:16
A rectangular playground is fenced at Rs. 11/metre and the total cost is Rs. 1210. If the length to breadth ratio is 6:5, find the area of the playground.
In an equilateral triangle ABC, D is the midpoint of side BC. If the length of BC is 8 cm, then the height of the triangle is:
A candidate just passed by getting 150 answers correct by attempting 225 of the total questions. Find the total number of questions in the examination i...
A metallic sphere of radius 4.2 cms. Is melted and recast into the shape of a cylinder of radius 6 cms. Height of the resultant cylinder would be:
If the total surface area of a cube is 486 cm², then calculate the volume of the cube.
A cone is parallel to its base in such a way that the volume of the smaller cone is  1/2197 times of the bigger cone. Find the height of the smaller co...
A cuboidal box with dimensions 12.5 cm (length), 7.5 cm (breadth), and 10 cm (height) is open from the top. The box is to be painted from the outside. I...
A conical tent of height 5m and base diameter 24m was erected by a company in a park. Find the curved surface area of the tent (in m²).
The volume of a cube is given as 8×(x+3)3 m3. The length of a rectangle is twice the side length of the cu...
If the volume of a cylinder is 486Ï€ and the ratio of radius to its height is 3:2 then find the curved surface area of cylinder?
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