To determine who is heavier between John and Sally, we need to compare their masses. John’s mass is given in kilograms (kg), and Sally’s mass is given in pounds (lb). To compare them accurately, we should convert Sally’s mass into kilograms.
1. **Convert Sally’s Mass from Pounds to Kilograms**:
We use the conversion factor: 1 pound is approximately 0.453592 kilograms. Thus, to convert Sally’s weight:
115 lb × 0.453592 kg/lb = 52.163 kg
2. **Compare the Masses**:
Now, we have:
- John’s mass: 115 kg
- Sally’s mass: 52.163 kg
3. **Conclusion**:
Since 115 kg (John) is greater than 52.163 kg (Sally), it is clear that John is heavier than Sally.