Percentage Problem

Question

60% of the San Diego Zoo visitors are single and all of the San Diego Zoo family visitors have children. If 25% of families visiting the San Diego Zoo have multiple children, what percentage of the San Diego Zoo visitors have only one child?

Answers

15
20
30
50
75

My take is 75%, but answer is 30%? Can anyone explain?

Answers

15
 20
 30
 50
 75

My take is 75%, but answer is 30%? Can anyone explain?

agdimple333 · Answer

40% are families.
25% of these 40% have multiple children, So 75% has single child.

=0.75*40 = 30%

ankushjain · Answer

40% visitors are married and have atleast one children.
Out of the these married 40%, 25% of 40% have more than one children hence the one with only one children are 75% of 40% = 30% of total.

Sudhanshuacharya · Answer

The catch here is  25% of families  ...

Therefore we know that there are 100-60 = 40% family with atleast 1 children.

Given 25% 0f 40% have more than 1 children
So % of family having only one child = (100-25)*40 = 30%

vinayrsm · Answer

good question, tries to confuse you with wordings.

loser · Answer

40% visitors are married and >= one children.
75% of 40% = 30%

kostyan5 · Answer

30% is right.

60% are single = 40% are families.

75% of families is .75(40%) = 30%

Percentage Problem

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