A and B are two sets. A has 10 members and B has 18 members. A ∪ B = 20. The number of members in A ∩ B will be

The number of subsets of A = {0, 1, 2} will be:

The difference between the squares of two numbers is 256000 and the sum of the numbers is 1000. The number are

The sum of two numbers is 10 and the difference of their squares is 40. Which is the larger of the two numbers?

The number of whole numbers between 437 and 487 is:

What are the two natural numbers whose product is 2400 and the sum of whose squares is 5200?