A tank holds 800 litres and 200 litres have been used. What percentage of the water remains?
Answer and explanation
Correct answer: C. 75%
- Step 1: Remaining = 800 − 200 = 600 litres.
- Step 2: Percentage remaining = 600 ÷ 800 × 100 = 75%.
Answer
75%.
Why not the others: 25%: this is the percentage used, not the percentage remaining. 80%: the used amount was divided by 10. 200%: the used amount was given as a percentage.
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