Question

Write the ratio or rate in simplest form.
28 Revolutions in 12 seconds.
A. 12 revolutions/28 seconds.
B. 28 revolutions/4 seconds.
C. 4 revolutions/12 seconds.
D. 7 revolutions/3 seconds.

Answer 1

28:12
equals...

D...

because 28 and 12 are both able to divided by 4, so if you divided them by 4, it is 7 to 3, (REMEMBER ORDER IS IMPORTANT) so the answer is D. 

ANSWER: D