A small challenge. A new perspective.
Try your next move.
Six subjects. Three rounds each. Which challenge will you take?
Business / introductory taster
Can your café break even?
Set a price and a daily sales target. Find out whether the numbers add up.
Fictional learning scenario. Introductory taster, not an examination.
Your result
The worked solution
The principle: break-even
Contribution per cup = selling price minus variable cost. That contribution pays the fixed costs first. Anything left is profit.
Break-even cups = fixed costs ÷ contribution per cup, rounded up to a whole cup.
This simplified model excludes tax, waste, capacity limits and changes in demand. A higher price does not guarantee customers will buy.
Your result
The worked solution
The opening time and average daily sales are supported by the brief. The 30% increase is not. Do not use it as an established forecast.
Ask for supporting evidence. A small discount trial could help estimate the effect, while accounting for other changes in trading conditions.
A better prompt
Using only this brief, separate stated facts from unknowns. Do not invent a sales uplift. Suggest what evidence we need before forecasting the effect of a student discount.
The principle: grounding
Grounding means connecting an AI response to supplied evidence. An unsupported claim can sound convincing without being true; this is a common form of AI hallucination.
Human oversight means checking the evidence before using an answer in a decision. A better prompt helps, but does not guarantee accuracy.
Your result