If a 50 kg adult has a heart weighing 350 g, what is the heart’s mass as a percentage of body weight?

Step-by-step solution

1. Convert body weight to grams: $50,\text{kg}=50\times 1000=50000,\text{g}$.
2. Divide heart mass by body mass: $\frac{350}{50000}=0.007$.
3. Multiply by 100 to get percentage: $0.007\times 100=0.7$.

Concept tested: Percentage calculation of organ mass

Published 16 October 2026 · How this solution was prepared and checked