In a set of 10 consecutive positive integers, the sum of first 5 numbers is 510. What is the average of last 5 numbers in the series?

A machine can produce 10 units in 5 hours. Another machine can produce 5 units in 10 hours. Working together,...

If b > d and then which of the following must be true given that a,b,c,d & e are positive integers?

In a school, 40% of the students are male and all the students like either math or English. If 60% of the stud...

If is negative, which of the following must be true?

A tank that was 10% full was emptied into a 50-litre bucket.If the oil now fills 40% of the bucket’s volume. T...

Sabuz earns 10 Taka for each ticket that he sells and a bonus of 2 Taka per ticket for each ticket he sells be...