Q3. Bill's weight decreases from 84.8 kg to 83.3 kg. Calculate the percentage decrease in Bill's weight. Give your answer correct to 3 significant figures.

Answer

To find the percentage decrease in Bill's weight, we can follow these steps: 1. **Calculate the decrease in weight:** Initial weight = 84.8 kg Final weight = 83.3 kg Decrease in weight = Initial weight - Final weight Decrease in weight = 84.8 kg - 83.3 kg = 1.5 kg 2. **Calculate the percentage decrease:** Percentage decrease = (Decrease in weight / Initial weight) × 100 Percentage decrease = (1.5 kg / 84.8 kg) × 100 Percentage decrease ≈ 1.7685446...% 3. **Round to 3 significant figures:** The percentage decrease = 1.77% (rounded to three significant figures). Thus, the final answer is 1.77%.