An easy question on averages for P4–P5, with a step-by-step solution, diagrams and the answer. Averages appear in the Hua Xia Cup's P4 and P5 first rounds, qualifying rounds and finals.
The question
4 classmates fold paper cranes together, 8 cranes each on average.
How many cranes do they fold altogether?
Show the hints (2)
💡Hint 1: "8 each on average" means: if everyone had folded the same number, each would have 8.
💡Hint 2: 4 people with 8 each — how many in all?
Worked solution
Have a go first, then read the solution step by step.
1."8 each on average": as if all 4 folded the same, 8 each.
2.Total = average × number of people = 8 × 4 = 32.
⚠️Common mistake: working out 8 ÷ 4. The total is the average times the number of people.
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