A coastal town records an average rainfall of 1200 mm for each month in June and July. If August rainfall increases by 20%, what is the total rainfall for June, July, and August?
Answer
3840 mm
The correct answer is 3840 mm — State the final total rainfall for the three months.
Step-by-step solution
- Calculate August rainfall: 1200 mm × (1 + 20/100) = 1200 × 1.2 = 1440 mm.
- Add June rainfall: 1200 mm + July rainfall: 1200 mm + August rainfall: 1440 mm.
- Compute total: 1200 + 1200 + 1440 = 3840 mm.
- State the final total rainfall for the three months.
Common mistake: Adding 20% to total instead of to August alone
Concept tested: Monsoon rainfall calculation
Published · How this solution was prepared and checked
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