4.6k views
5 votes
Jennifer can do 8 math problems in 20 minutes. How long would it take her to complete a 10 question test at the same rate?

User Gcedo
by
3.8k points

2 Answers

1 vote

Answer:

25 minutes

Explanation:

→You can set this problem up as a proportion, like so:


(8)/(10) =(20)/(x)

→Cross multiply:


(8x)/(200)

→Divide 200 by 8:

x = 25

User Little Bird
by
4.3k points
3 votes

Answer:

25 minutes

Step-by-step explanation: 20 divided by 8 equals 2.5 so she take 2 and a half minutes per question. 2.5 plus 2.5 equals 5 so just add five minutes on her original time. 25 minutes

User Raziza O
by
4.0k points