SSAT Middle Level Math : How to find the whole from the part with percentage

Study concepts, example questions & explanations for SSAT Middle Level Math

varsity tutors app store varsity tutors android store

Example Questions

2 Next →

Example Question #11 : How To Find The Whole From The Part With Percentage

Pie_graph

Refer to the above diagram. If there were  voters who were registered as neither Republicans nor Democrats in Smith County in , how many voters (nearest whole number) were there total?

Possible Answers:

Correct answer:

Explanation:

 of the voters were unaffiliated, and  were affiliated with other parties, so  of the voters were registered as neither Republicans nor Democrats. Since  of the voters numbered , we can find the total number of voters by setting up and solving a proportion:

which rounds to  voters.

 

Example Question #11 : How To Find The Whole From The Part With Percentage

25% of fish are blue (50 fish). 50% of fish are green (100 fish). The remaining fish are red. How many fish are red?

Possible Answers:

Correct answer:

Explanation:

First, we need to determine the percentage of fish that are red. So add the percentages of blue and green fish and then subtract this number from 100. So,

 and 

If you notice that the problem already states how many fish constitute 25 percent, you don’t need to do any more work! Therefore, 50 fish are red.

Example Question #11 : How To Find The Whole From The Part With Percentage

0.45 is 24% of what number?

Possible Answers:

Correct answer:

Explanation:

The answer multiplied by 24%, or, equivalently, 0.24, is 0.45. Subsequently, divide 0.45 by 0.24.

2 Next →
Learning Tools by Varsity Tutors