Question

1-Calcule. c- 25% de 400m. d-70% de 500m

Answer 1

c) 100% - 400
     25% - x
x = 400 * $\frac{25}{100}$ = 4 * 25 =  100m

d) 100% - 500
     70% - y
y = 500 * $\frac{70}{100}$ = 5 * 70 = 350m