Source: Ahmad Ibrahim Primary
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Question
Answer
a)
| Factors of 54 | Factors of 108 | Factors of 189 |
| 1 × 54 | 1 × 108 | 1 × 189 |
| 2 × 27 | 2 × 54 | 3 × 63 |
| 3 × 18 | 3 × 36 | 7 × 27 |
| 6 × 9 | 4 × 27 | 9 × 21 |
| 6 × 18 | ||
| 9 × 12 |
Greatest possible equal length she can cut from all three strings is 27 cm.
b) 54 ÷ 27 = 2 pieces from first rope
108 ÷ 27 = 4 pieces from second rope
189 ÷ 27 = 7 pieces from third rope
2 + 4 + 7 = 13 pieces in total