If the sum of the interior angles of a regular polygon measures , how many sides does the polygon have?

If the mean of numbers 28, x, 42, 78 and 104 is 62, what is the mean of 48,62,98,124 and x?

The average age of a group o f10 students was 20. The average age increased by 2 years when two new students j...

If the difference between the circumference and diameter of a circle is 60 cm , then the radious of the circle...

A triangular plot with sides of 25 feet, 40 feet and 55 feet is to be surrounded by a fence built on pillars s...

Which of the following is the lowest positive integer that is divible by 8,9,10,11 and 12?

As the price of mango has reducted 20%. It now possible to buy 2 more mangoes at Tk. 12. What is the current p...