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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 factory has 3 machines A, B, and C. Machine A produces 40% of the total output, B produces 35%, and C the remaining. It is known that 5% of items fro...
In a triangle ABC, AB = AC. The length of the median from A to BC is 9 cm and the angle between the median and AB is 60°. Find the length of AB.
In Microsoft Excel, what does the function VLOOKUP do?
A tangent to a circle of radius 5 cm is drawn from a point 13 cm away from the center of the circle. Find the length of the tangent.
A solid cylinder has a radius of 3 cm and a height of 10 cm. If it is melted and recast into a cone with a base radius of 3 cm, what will be the height ...
A sum of money doubles itself in 5 years at simple interest. In how many years will it become 5 times itself at the same rate of interest?
A triangle ABC is inscribed in a circle. The tangent at A meets the extended sides BC and AB at points P and Q, respectively.
If ∠ACB = 30° an...