40% of 60 is what percent of 240 — Aptitude Question
40% of 60 is what percent of 240: 40% of 60 is what percent of 240? Answer and worked solution on CodeKairo.
- Topic: Percentages
- Section: Quantitative Aptitude
- Difficulty: Easy
- Time target: 40 seconds
Question
40% of 60 is what percent of 240?
Options
- 8%
- 10%
- 12%
- 15%
Show the answer and the worked solution
Correct answer: B. 10%
Worked solution
- 40% of 60 = 24.
- 24/240 = 0.10 = 10%.
Answer: 10%.
The idea
Work strictly left to right: compute the stated quantity, then express it against the new base. Mixing the two bases is the only way to go wrong.
Shortcut. 40% of 60 against 240 = 40% × 60/240 = 40% × 1/4 = 10% — the 24 never needs computing.
Common trap. 15% — computing 60/240 = 25% and then taking 40% off it (25 × 0.6) instead of 40% of it (25 × 0.4).