Posted by **Kim** on Friday, March 28, 2008 at 12:18pm.

Kristi joggfed for 3/5 of an hour, swam for 1/2 of an hour, and rode her bicycle for 3/4 of an hour. How long did she exercise?

a. 7/11

b. 9/40

c. 1 17/20

d. 1 7/20

answer: c

Juan owned 3/4 of a family business. He sold 1/3 of the business to his aunt. What portion of the business does he still own?

a. 13/12

b. 5/12

c. 5/13

d. 8/13

answer: b

Estimate the following product

2 1/5 * 4 5/6

a. 8

b. 10

c. 15

d. 18

answer: c

- Math - double check me -
**Reiny**, Friday, March 28, 2008 at 12:25pm
The first two are correct.

there has to be a misprint in the third, since according to your question you are appr. doing 1/5 * 5 which is 1

- Math - double check me -
**bobpursley**, Friday, March 28, 2008 at 12:27pm
The second and third are wrong. There is no correct answer for the second.

2/3 of 3/4 is 1/2

- Math - double check me -
**Ms. Sue**, Friday, March 28, 2008 at 12:28pm
I believe the problem in the third one is:

2 1/5 * 4 5/6

C is not the correct answer.

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