Question 1 (b)(i)
Completing the marginal benefit column for burgers
1 mark
- Time to write
- About 2 minutes
Question
Question 1 (b)(i) · 1 marksThe total benefits you get from consuming different quantities of burger each week are given in the table below.
| Burgers (per week) | Total benefit (equivalent in ₹) | Marginal Benefit |
|---|---|---|
| 0 | 0 | X |
| 1 | 180 | |
| 2 | 300 | |
| 3 | 384 | |
| 4 | 444 | |
| 5 | 480 | |
| 6 | 504 |
- Complete the marginal benefit column.
Reworded from the university paper: names and figures differ, the task is the same. The original paper belongs to the University of Delhi. See DU's question bank.
Before you write
Read off the question and its marks
What the paper leaves open
As printed, the marginal-benefit column is blank except for an X against zero burgers; the stem and table are repeated in every part of Q1 (b).
Write it in this order
- 1 Marginal benefit as the change in total benefit, with the completed column 1 mark 2 min
Try it first. About 2 minutes for 1 marks. Write it out, then open the solution.
Solution
Hover or tap a marked figure, like 72,000, to see how it is made and where else it appears.
How marginal benefit is found. The marginal benefit of a burger is the extra benefit it adds: the total benefit with that burger minus the total benefit without it. This is the same rule by which marginal utility is the change in total utility from one more unit, MUn = TUn − TUn−1. The X against zero burgers stays, because there is no earlier quantity to compare with.
| Burgers (per week) | Total benefit (equivalent in ₹) | Marginal benefit (₹) |
|---|---|---|
| 0 | 0 | X |
| 1 | 180 | 180 − 0 = 180 |
| 2 | 300 | 300 − 180 = 120 |
| 3 | 384 | 384 − 300 = 84 |
| 4 | 444 | 444 − 384 = 60 |
| 5 | 480 | 480 − 444 = 36 |
| 6 | 504 | 504 − 480 = 24 |
Answer. The marginal benefits of the 1st to 6th burger are ₹180, ₹120, ₹84, ₹60, ₹36 and ₹24. Each burger adds less than the one before, so marginal benefit diminishes, and the six marginal benefits add up to the total benefit of six burgers: 180 + 120 + 84 + 60 + 36 + 24 = 504.
Where the 1 marks sit
| # | Component | Marks |
|---|---|---|
| 1 | Marginal benefit as the change in total benefit, with the completed column | 1 |
| Total | 1 |
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