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MCQ practice · SSC Biology Board questions · Chapter 5: Food, Nutrition and Digestion

Barishal Board 2023

What is the BMI of a person 168 cm tall and weighing 66 kg?

Think it through first, then pick an option.

  1. a 23.04
  2. b 23.40
  3. c 25.92
  4. d 39.29
Answer and explanation

Correct answer: b 23.40

168 cm = 1.68 m. 66 ÷ (1.68)² = 66 ÷ 2.8224 ≈ 23.4.

Why the other options are wrong

  • a 23.04: 23.04 needs dividing 66 by 2.863; 1.68² = 2.8224, so the result is 23.4.
  • c 25.92: 25.92 needs dividing 66 by 2.55; 1.68² = 2.8224, so the result is 23.4.
  • d 39.29: 39.29 comes from dividing 66 by 1.68 instead of its square; you must square the height, 1.68² = 2.8224.