Problem-Solving and Data AnalysisMediumMembership before a year's growth
Problem-Solving and Data Analysis practice question
The membership of a club grew by 5% over a year to 8,400. What was the membership a year earlier?
Answer: 8000
1.05 × earlier = 8,400, so earlier = 8,000.
Common wrong answers
- If you answered 7560
- 7560 subtracts 10%.
- If you answered 7980
- 7980 subtracts 5% of 8,400.
- If you answered 8820
- 8820 adds 5% again.
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