Mary decreased her time for the mile walk from 30 minutes to 24 minutes. What was the percent of decrease?
A. 32%
B. 20% increase
C. 20% decrease
D 88%

Respuesta :

It will be C)


(24-30/ 30) *100
= - 20
So we will be stating (-) as 20% decrease .

Hope it helps
kh2005
Yea its c ithink though