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Chapter 1: Q8. (page 52)

The ratio of girls to boys in a class is 5 to 4. If there are total of 27 students in the class, state how many are girls.

A. 15 B. 12

C. 9 D. 5

Short Answer

Expert verified

Number of girls in the class is 15 and the correct option isA.

Step by step solution

01

- State the definition of a variable.

A variable is a term that is used to represent an unknown value.

02

- Obtain the number of girls in the class.

The ration of girls toboys is 5 to 4.

The total ratio is:

5+4=9

Total number of students in the class is 27.

Then, number of girls in class is:

Numberofgirls=RatioofgirlsintheclassTotalratio脳2759脳27=5脳3=15

03

- State the conclusion.

Number of girls in the class is 15. Therefore, option A is correct.

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