The average weight of 25 bags is 55 kg. The weight of one bag was misread as 65 instead of 56. Find the correct mean value.
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A certain sum of money becomes double of itself in 15 years at a rate of simple interest. In how many years will it become 5 times of itself at the same rate of simple interest
The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.
A sphere has the same curved surface area as a cone of vertical height 40 cm and radius 30 cm. The radius of the sphere is
The point equidistant from the sides of a triangle is called
If the curved surface area of a right circular cone is 10010 sq cm and its radius is 35 cm, find its volume?
A hexagonal prism has 18 edges. How many vertices does it have?
The mean of a distribution is 20 and the standard deviation is 4. What is the value of the coefficient variation?