Question

A piece of wood is 220 cm long. If 66 cm is cut away from the wood, what percentage of it remains?

Answer 1

After removing 66 cm from the original 220 cm long piece of wood, the remaining length is 154 cm, which is 70% of the original length.

Step-by-step explanation:

When a piece of wood that is originally 220 cm long has 66 cm cut away, we need to calculate what percentage of the original length remains. To do this, we can subtract the length cut away from the original length to find the new length of the wood:

• Remaining length = Original length - Cut length
• Remaining length = 220 cm - 66 cm
• Remaining length = 154 cm

Now, we want to find out what percentage 154 cm represents of the original 220 cm. To do so, we divide the remaining length by the original length and then multiply by 100 percent:

1. Percentage remaining = (Remaining length / Original length) × 100%
2. Percentage remaining = (154 cm / 220 cm) × 100%
3. Percentage remaining = 0.7 × 100%
4. Percentage remaining = 70%

Thus, after cutting 66 cm from the original piece of wood, 70% of the wood remains.