If 10% of the adults have no children, what is the ratio of adults wit

Question

If 10% of the adults at the mall have no children, what is the ratio of adults with children to adults without children at the mall?

A. 1 : 9
B. 2 : 3
C. 3 : 2
D. 3 : 4
E. 9 : 1

BrentGMATPrepNow · Answer

Let's say there is a TOTAL of  100  adults at the mall.

10% of the adults at the mall have no children  
10% of  100  =  10 , so  10  adults have NO children. 
This means the number of adults WITH children =  100  -  10  =   90

What is the ratio of  adults with children  to  adults without children  at the mall?  
The ratio =   90   to  10 
= 9 : 1

Answer:  A

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generis · Answer

Algebraically:

Let X be total # of adults at the mall

Adults without children = .10X

Adults with children ==>
X - 10X = .90X

Ratio of WITH to WITHOUT =

.90X/.10X = 9/1 or 9:1

sashiim20 · Answer

If 10% of the adults at the mall have no children, what is the ratio of adults with children to adults without children at the mall?

Let total number of adults = 100
Adults who have no children = 10% of 100 = \(\frac{10}{100}\) x 100 = 10
Therefore adults with children = 100-10 = 90

Hence the required ratio = adults with children / adults without children = \(\frac{90}{10}\) = \(\frac{9}{1}\) or 9:1.

Answer E....

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ScottTargetTestPrep · Answer

We are given that 10% of the adults at the mall have no children, which means that 90% have children.

Therefore, the ratio of adults with children to those without children = 90 : 10 = 9 : 1.

Answer: E

praveenmittal95605 · Answer

let number of adults be 100

hence without children is 10 and with children is 90 => ratio is 90:10= 9:1

Hence E is Correct Option

ScottTargetTestPrep · Answer

Solution:
 
We can let the total number of adults at the mall be 10. So, 1 adult has no children and 9 adults have children. We see that the ratio of adults with children to adults without children at the mall is 9 : 1.

Answer: E

If 10% of the adults have no children, what is the ratio of adults wit

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If 10% of the adults have no children, what is the ratio of adults wit

Prep Toolkit

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My Rewards