Question
Matthew sells Chocolates in the packs of 6 chocolates,
12 chocolates, 18 chocolates and 24 chocolates etc, but the rate is necessarily uniform. One day Carlos purchased at the rate of 6 chocolates for a rupee and the next day he purchased equal number of chocolates at the rate of 12 chocolates for a rupee. Next day he sold all the chocolates at the rate of 18 chocolates for Rs. 2. What is his percentage profit or loss?Solution
Cost of one chocolate (in first case) = 1/6 = 16.66 paise Cost Price of one Chocolate (in second case) = 1/12 = 8.33 paise Average Cost Price of one chocolate = ((16.66 + 8.33)/2) = 12.5 paise Selling Price of one chocolate = 200/18 paise Loss % = (12.5- 200/18 )/12.5 ×100 = 25/(18 ×12.5) ×100 = 11.11%
- 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.