30163
Question
In a tap dancing class, the ratio of boys to girls is 5 : 7.
There are 6 more girls than boys in this group.
How many students are in this group altogether?
Worked Solution
5 : 7 means that given 12 students ⇒ 5 boys, 7 girls
If 24 students ⇒ 10 boys, 14 girls
If 36 students ⇒ 15 boys, 21 girls
∴ In a class of 36 students, there are 6 extra girls.
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Variant 0
DifficultyLevel
651
Question
In a tap dancing class, the ratio of boys to girls is 5 : 7.
There are 6 more girls than boys in this group.
How many students are in this group altogether?
Worked Solution
5 : 7 means that given 12 students ⇒ 5 boys, 7 girls
If 24 students ⇒ 10 boys, 14 girls
If 36 students ⇒ 15 boys, 21 girls
∴ In a class of 36 students, there are 6 extra girls.
Question Type
Multiple Choice (One Answer)
Variables
| Variable name | Variable value |
| correctAnswer | |
Answers