Who has the highest average? — Aptitude Question
Who has the highest average?: Marks out of 100 in four subjects: | Student | Maths | Physics | Chemistry | English… Answer and worked solution on CodeKairo.
- Topic: Tables & Charts
- Section: Data Interpretation
- Difficulty: Easy
- Time target: 75 seconds
Question
Marks out of 100 in four subjects:
| Student | Maths | Physics | Chemistry | English |
|---|---|---|---|---|
| Aditi | 88 | 76 | 92 | 71 |
| Bhavesh | 74 | 85 | 68 | 80 |
| Chirag | 91 | 90 | 79 | 65 |
| Divya | 66 | 72 | 84 | 88 |
Which student has the highest average across the four subjects?
Options
- Divya
- Aditi
- Bhavesh
- Chirag
Show the answer and the worked solution
Correct answer: B. Aditi
Worked solution
- Aditi: 88 + 76 + 92 + 71 = 327
- Bhavesh: 74 + 85 + 68 + 80 = 307
- Chirag: 91 + 90 + 79 + 65 = 325
- Divya: 66 + 72 + 84 + 88 = 310
Every student sat the same four subjects, so the highest total is also the highest average. Aditi leads Chirag by two marks.
Answer: Aditi.
The idea
When every row has the same number of entries, compare totals and skip the division entirely.
Shortcut. Subtract 80 from every mark and add the differences: Aditi +7, Chirag +5, Divya −10, Bhavesh −13. Aditi leads without any full totals.
Common trap. Chirag tempts with the two highest single marks in the table (91 and 90), but his 65 in English costs him; his total of 325 is two short of Aditi's 327.