A school band consists of 45 boys and 50 girls of the total number of boys 18 play the drums What percent of the boys play the drums ?

Respuesta :

We can solve this problem by the rule of three.
45 boys-------------100 %
18 boys--------------  x


x=(18 boys * 100%) / 45 boys=40 %


Answer: 40% of the boys play de drums.