The volume of Blood in a Human body to be approximately ____ of body weight?

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The volume of Blood in a Human body to be approximately ____ of body weight? Answer: 7%

The volume of blood in a human body is approximately 7-8% of body weight. This means that for an average 70 kg (154 lb) adult, there are about 4.9 to 5.6 liters (1.3 to 1.5 gallons) of blood.

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.