Which of the following numbers is a prime number?

B. 29
Posted in:  Numbers -  Arithmetic -  Mathematics

What is the least common multiple (LCM) of 12 and 15?

B. 60
Posted in:  Numbers -  Arithmetic -  Mathematics

If x is an integer such that 3x + 5 = 20, what is the value of x?

A. 5
Posted in:  Numbers -  Arithmetic -  Mathematics

What is the sum of the first 10 positive integers?

B. 55
Posted in:  Numbers -  Arithmetic -  Mathematics

What is the least common multiple (LCM) of 12 and 15?

A. 30
Posted in:  Numbers -  Arithmetic -  Mathematics