AlgebraEasy–MediumWeight of a cup
Algebra practice question
Two cups and a saucer weigh 11 ounces. One cup and a saucer weigh 7 ounces. What is the weight of one cup, in ounces?
Answer: 4
The difference between the two sets is one cup: 11 − 7 = 4.
Common wrong answers
- If you answered 3
- 3 is the saucer's weight.
- If you answered 7
- 7 is the weight of a cup and a saucer together.
- If you answered 5.5
- 5.5 halves 11, ignoring the saucer.
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