A team of 2 men and 5 women completed one-fourth of a project in 3 days. After 3 days, one woman left and one man joined the team. The newly formed team took 2 days to complete another one-fourth of the project. How many days will it take to complete the project alone?

What is the minimum value of

When nnn liters of fuel were added to a tank that was already 1/3 full, it was filled to 7/9 of its capacity....

If 1 < x < 7 and 5> y > 2 which of the following must be true?

A box having height 2m, length 10m and width 7m have the top lid open. What is the surface area of the box?

How many positive integers less than ten thousand are multiples of both eight and eighteen?

By selling 20 oranges for one taka-a man losses 4%. How many oranges for one taka should he sell to gain 20%?