Respuesta :
use the rule of 3 simple
45 boys mean 100%
18 boys ------- x%
-------------------------------
x = 18*100/45 = 40
so this mean that 40% of the total number of boys play the drums
hope helped
45 boys mean 100%
18 boys ------- x%
-------------------------------
x = 18*100/45 = 40
so this mean that 40% of the total number of boys play the drums
hope helped