AlgebraEasyGirls in a group from an equation
Algebra practice question
The equation y = 10 − x gives the number of girls y in a group of 10 children that has x boys. If the group has 6 boys, how many girls does it have?
Answer: 4
y = 10 − 6 = 4.
Common wrong answers
- If you answered 6
- 6 is the number of boys.
- If you answered 10
- 10 is the whole group.
- If you answered 16
- 16 adds instead of subtracting.
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