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...

A hat contains 12 cards marked with a star and 18 unmarked cards. What is the probability that one card slelec...