Question

Let X be an element of the set {0.2, 1.2, 2.2, 3.2, 4.2}. For *how many* values of X is 10x/3 (<=as a fraction) an integer?

Answer 1

Answer:

2

Step-by-step explanation:

x=1.2 10*1.2/3=12/3=4

x=4.2 10*4.2/3=42/3=14