AlgebraEasyPears in a box
Algebra practice question
A box holds 9 pieces of fruit, all apples or pears. There are twice as many apples as pears. How many pears are in the box?
Answer: 3
a = 2p and a + p = 9 give 3p = 9, so p = 3.
Common wrong answers
- If you answered 6
- 6 is the number of apples.
- If you answered 18
- 18 doubles 9.
- If you answered 4.5
- 4.5 halves 9, ignoring the two-to-one ratio.
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