A butcher is 5 feet 10 inches tall. What does he weigh? |
Ha! This is a joke, isn't it?
Q: A butcher is 5 feet 10 inches tall. What does he weigh?
A: Meat.
Actually, to prove that we mathematicians really do have a sense of humour, let us tell you about the Body Mass Index. This is calculated as follows:
For example, if a man is 1.79 metres tall and weighs 86 kg, then his BMI is:
86 / 1.79^{2} = 26.8
which puts him slightly overweight.
So let's get back to your butcher, who is 1.78 metres tall. Assuming he has an ideal BMI,
then we can say
WEIGHT / 1.78^{2} = 24
WEIGHT = 24 * 1.78^{2} = 76
so he should weigh around 76 kg (or 12 stone).
If you want to find out more about this, and test your own figures, try the online Healthy Body Calculator