If the mean of four observations is 20 and when a constant C is added to each observation the mean becomes 22 the value of C is –
A sphere has a volume of 288π cubic units. What is the diameter of the sphere?
Find the distance between the points (2, 5) and (7, 1).
A factory produces three types of products, X, Y, and Z. The average production of product X over 5 days is 120 units per day. The average production of...
The sum of two numbers is 20 and their product is 96. Find the numbers.
In a triangle ABC, the sides are AB = 15 cm, BC = 20 cm, and AC = 25 cm. Find the area of the triangle using Heron’s formula.
If the ratio of boys to girls in a class is 3:4 and the total number of students is 56, how many boys are there?
A shopkeeper buys 100 apples at ₹5 each. 10 apples get spoiled. He sells the remaining apples at ₹6 each. What is his overall profit or loss percen...
A cylindrical tank has a height of 12 m and a base radius of 5 m. If water is filled up to 8 m in the tank, what is the total surface area of the water'...
6, 41, 208, 1045, 5232, ?.
