Question

Aflati un numar stiind ca 10% din el este a) 2/5, b) 13/10 c) 9/2

Answer 1

a) 10/100*x=2/5
x/10=2/5
5x=20/:5
x=4

b) 10/100*x=13/10
x/10=13/10
10x=30/:10
x=3

c)10/100*x=9/2
x/10=9/2
2x=90/:2
x=45
Sper ca te-am ajutat!!