Do You Know Your Divisibility Rules

For which of the following values of \(n\) is \(\frac{120+n}{n}\) NOT an integer?

(A) \(3\)      (B) \(4\)      (C) \(5\)      (D) \(6\)      (E) [math]7[/math]

Read more ›

An LCM DS Problem

Is x divisible by 12?

(1) x is divisible by 3 and 4.

(2) is divisible by 2 and 6.

Read more ›