Find the number which is NOT a prime number.
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'P' is the smallest positive integer such that every positive integer N greater than 'P' can be written as a sum of two composite numbers. Then 'P' is
An angle is 1/3 its supplementary angle. Find the measure of the angle?
The centroid of a triangle is the point where
The angles of elevation of the top of a tower 72 metre high from the top and bottom of a building are 30° and 60° respectively. What is the height (in metres) of building?
The total surface area of a cube is 73.5 sq.cm. Find its side (in cm).
What is the slope of the line perpendicular to the line passing through the points (-4,5) and (3,-2)?
After buying a toy for Rs.45, Raghu managed to sell it at a profit of 15%. The selling price of the toy was