animaljam1218 animaljam1218

25-02-2016
Mathematics

Answered

Malorie can work 10 math problems in 3 minutes.

At this rate, how many problems can she work in one hour?

A.

30

B.

60

C.

120

D.

200

I think 30

Verified Answer :

apologiabiology apologiabiology

25-02-2016

so
10problems=3 minute

1 hour=60 minutes
3 times what=60
divide by 3
what=20

10 problems=3 minutes
mutiply by 20
20 times 10 problems=20 times 3 minutes
200problems=60 minutes
200 problems=1 hour

answer is 200 problems

answer is D. 200

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