Which choice does not equal the others? How do I figure this out?

Question

A. 4% of 3,000
B. 40% of 30
C. 40% of 300
D. 30% of 400

Answer 1

Do each of the problems.

A. 0.04 * 3,000 = 120

Three of the problems have the same answer. Which one does not?

Answer 2

B does not equal the others
.04*3000=120
.4*30=12
.4*300=120
.3*400=120

Answer 3

Thank you Ms. Sue and Mr. James!

Answer 4

I also had this as a question for my homework! :)