What percent of a day — Percentages Aptitude Question
What percent of a day: 3 hours is what percent of a day? Answer and worked solution on CodeKairo.
- Topic: Percentages
- Section: Quantitative Aptitude
- Difficulty: Easy
- Time target: 40 seconds
Question
3 hours is what percent of a day?
Options
- 10%
- 12.5%
- 15%
- 20%
Show the answer and the worked solution
Correct answer: B. 12.5%
Worked solution
- A day = 24 hours.
- 3/24 = 1/8 = 12.5%.
Answer: 12.5%.
The idea
Put both quantities in the same unit before dividing. The fractions worth memorising: 1/8 = 12.5%, 1/6 = 16⅔%, 1/3 = 33⅓%, 3/8 = 37.5%.
Shortcut. 3 hours is 1/8 of 24; a quarter day (6 hours) is 25%, so half of that is 12.5%.
Common trap. 10% — treating 3 hours as 'about a tenth' of the day; a tenth of 24 hours is only 2.4 hours.