Wednesday's share of the week — Caselets Aptitude Question
Wednesday's share of the week: A shop was open for six days last week and sold 1,200 items in all. Answer and worked solution on CodeKairo.
- Topic: Caselets
- Section: Data Interpretation
- Difficulty: Medium
- Time target: 60 seconds
Question
A shop was open for six days last week and sold 1,200 items in all. The daily figures were:
- Monday: 150
- Tuesday: 200
- Wednesday: 180
- Thursday: 220
- Friday: 250
- Saturday: 200
Wednesday's sales were what percentage of the week's total?
Options
- 12%
- 15%
- 18%
- 20%
Show the answer and the worked solution
Correct answer: B. 15%
Worked solution
- Wednesday = 180 and the total = 1,200.
- Share = 180 ÷ 1,200 = 0.15 = 15%.
Answer: 15%.
The idea
A share is always the part over the whole. Reading the whole off the caselet saves re-adding the six figures.
Shortcut. 1% of 1,200 is 12, and 180 ÷ 12 = 15, so the share is 15%.
Common trap. 18% — reading 180 out of 1,000, as if the total were a round thousand instead of 1,200.