Q1.
In a particular race, 960 participants volunteered. Each boat is pedalled by 64 people. How many boats will be needed? (960 ÷ 64)
Answer
| No. of boats | No. of participants | No. of people remaining |
|---|---|---|
| 960 | ||
| 10 | 640 | 320 |
| 5 | 320 | 0 |
10 boats hold 64 × 10 = 640 people
960 − 640 = 320 people left
5 boats hold 64 × 5 = 320 people
320 − 320 = 0 people left
Total no. of boats = 10 + 5 = 15
Remainder = 0
960 − 640 = 320 people left
5 boats hold 64 × 5 = 320 people
320 − 320 = 0 people left
Total no. of boats = 10 + 5 = 15
Remainder = 0
15 boats will be needed, and no one is left out.
Why it happens: Sixty-four people fill one boat. We keep taking away boat-loads until nobody is left.