Posted by **Anonymous** on Monday, August 13, 2012 at 5:53pm.

In a recent survey of 100 women, the following information was gathered.

31 use shampoo A.

27 use shampoo B.

36 use shampoo C.

8 use shampoos A and B.

3 use shampoos A and C.

5 use shampoos B and C.

1 use all three.

Use the figure to answer the question in the problem.

How many are using shampoos A and C, but not B (Region IV)?

1 . women

- math -
**lashan**, Monday, August 13, 2012 at 8:36pm
I don't know how to get this answer help me please

- math -
**Steve**, Tuesday, August 14, 2012 at 4:51am
Make a Venn diagram. Label the small center section with 1, since only 1 person uses all 3.

Now label the intersection of A&B with 8, and the intersection of A&C with 3.

Now the portion of A outside B and C is 31-8-3-1 = 19.

Moving right along, you will see that the answer is 3

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