Question
If the ratio of time periods of investment of A and B is
3:4, profit at the end of the year is Rs.100000 and A’s share in it is Rs.20000, then what is the ratio of A’s and B’s investment?Solution
Let the ratio of A’s and B’s investment be x:y. The ratio of time periods of investment of A, => [3x/(3x+4y)] x 100000 = 20000 => [3x/(3x+4y)] = 1/5 => 15x = 3x + 4y => 12x = 4y => x:y = 1:3
- If the edge of the cube is increased by 30%, then find the percentage increase in the volume of the cube.
If the altitude of an equilateral triangle is 9 cm then find out its area?
A cube of volume 768 cm³ is molded into a cuboid whose length, width, and height are in the ratio 3: 2: 2. Find the length of the cuboid.
Area of a rectangle is equal to the total surface area of a hemisphere having volume 1458 cm³ . Find the perimeter of the rectangle if its length is 12...
A rectangular swimming pool is 40 meters long and 25 meters wide. If the pool is being filled at a rate of 10 cubic meters per minute, how long will it ...
What is the length (in cm) of chord PQ in a circle with a radius of 7 cm, where a diameter AB and non- diameter chord PQ intersect perpendicularly at po...
The cost of fencing a rectangular field at the rate of Rs. 5 per meter is Rs.350. If the length of the field is 15 meters more than its breadth, then fi...
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...
If the area of a triangle is 1014 cm2 and base: corresponding altitude is 3:4, then the altitude of the triangle is:
- Four cubes, each with a side length of 8 cm, are connected in a straight line to form a cuboid. Calculate the total surface area of the resulting cuboid.
