The remaining college — Caselets Aptitude Question
The remaining college: Three colleges admitted 1,200 students in all. College A took 40%, College B took 35%, and… Answer and worked solution on CodeKairo.
- Topic: Caselets
- Section: Data Interpretation
- Difficulty: Easy
- Time target: 60 seconds
Question
Three colleges admitted 1,200 students in all. College A took 40%, College B took 35%, and College C took the rest.
How many students did College C admit?
Options
- 240
- 300
- 360
- 420
Show the answer and the worked solution
Correct answer: B. 300
Worked solution
- College C's share = 100 − 40 − 35 = 25%.
- 25% of 1,200 = 300.
Answer: 300.
The idea
Work out the missing percentage first, then apply it once. Subtracting the two known headcounts gives the same result.
Shortcut. C's share is 100 − 75 = 25%, a quarter of 1,200 = 300.
Common trap. 420 — that is College B's 35% of 1,200; reading the wrong college's share.