CAIE A-Level Economics 7.1.1 Total & marginal utility
Practise reading total and marginal utility tables and diagrams to decide how extra consumption changes consumer satisfaction.
- Syllabus
- 2026–2028
- Course
- Economics 9708
- Level
- A2
Exam points
- calculate marginal utility from total utility tables for successive units consumed
- interpret when total utility rises, falls or is maximised from a marginal utility diagram
7.1.1—Total and marginal utility question 1
[Maximum number: 1]
The table shows the total utility gained by a consumer from the consumption of water.
| quantity<br>consumed<br>/bottles | total<br>utility |
|---|---|
| 0 | 0 |
| 1 | 30 |
| 2 | 40 |
| 3 | 48 |
| 4 | 54 |
| 5 | 58 |
What can be concluded from this table?
A
Marginal utility increases as consumption increases.
B
The consumer cannot switch expenditure to another product to increase total utility.
C
The marginal utility of the 3rd unit is 8 .
D
The marginal utility of the 5th unit is 2 .
C
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