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Total there are 10 socks so probability of getting 3 socks out of 10 socks = ¹⁰C₃ So Probability of getting 3 blue socks = ³C₃ / ¹⁰C₃ = (3× 2× 1)/(10× 9× 8) = 1/120
The difference between the length and breadth of a rectangle is 13 m. If its perimeter is 186 m, then its area is
A hemispherical bowl of internal radius 9 cm, contains a liquid. This liquid is to be filled into small cylindrical bottles of diameter 3 cm and height ...
The length of the rectangle is triple its breadth. If the perimeter of the rectangle is 56 m, then find the area (in m2) of the rectangle.
After increase in sugar prices by 20%, a person is able to buy 2 kg less sugar for Rs. 540. Find the original and increased price of sugar per kg.
...The area of a triangle is 96 cm² and its perimeter is 48 cm. Find the in-radius (radius of the inscribed circle) of the triangle.
A wire is bent to form a square whose sides are of 11 cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circl...
A cylindrical tank of 28 cm base radius is partly filled with water. How many bullets of 1cm radius of iron is added in it in order to increase the wate...
The ratio of length to breadth of a rectangle is 7:8. If the sum of the length and breadth of the rectangle is 45 cm, then find the area (cm2...
If the radius of a right circular cylinder is doubled (an increase of 100%), and its height is reduced by half (a decrease of 50%), what will be the ra...
Area of a rectangle is equal to the total surface area of a hemisphere having volume 8192 cm³. Find the perimeter of the rectangle if its length is 125...
