Question

A man and his horses together have 10 legs. Calculate the number of horses.

• A. 2
• B. 12
• C. 4
• D. 6

Answer 1

The correct option is A 2

$\text{Number of legs that the man has}=2$

$\text{Total number of legs}=10$

$\text{Number of legs that belong to the horses}=10-2=8$

$\text{Number of legs a horse has}=4$

$\text{The fraction}=\frac{8}{4}$

$\text{To find the unit rate, we divide the}\text{numerator and the denominator by 4}$

$\text{Number of horses}=\frac{8}{4}=\frac{8÷4}{4÷4}=\frac{2}{1}$

$\therefore \text{Number of horses}=2$