练习题 · 英文原题 · SEL-MA-TST-25
The bar chart shows the number of laps five friends swam in a swim-a-thon. Each lap raised $2.
Swimmer · Laps
How much more money did the swimmer with the most laps raise than the swimmer with the fewest laps?
查看答案与解析(英文)
答案: C
Answer: C ($80)
- Most laps: Theo, 60. Fewest laps: Kalinda, 20.
- Difference: 60 − 20 = 40 laps.
- Each lap raised $2: 40 × $2 = $80.
Why the other options are wrong
- A ($40): This is the difference in laps; it forgets that each lap raised $2.
- B ($60): This uses Rania's 50 laps as the most, but Theo's bar is taller.
- D ($120): This is the money Theo raised on his own, not the difference.
- E ($160): This adds the two swimmers' laps (60 + 20) before doubling, instead of finding the difference.
