Question

Jika p:q=4:5 dan p+q=36 maka p-q=...

Answer 1

Dik p:q =4:5
      p+q=36
dit: p-q=???
  jawab:
jadi p =16
      q = 20
dan p-q =16-20
              =-4

Answer 2

Dik : p : q = 4 : 5
       p+q=36
Dit : p-q=
jawab :
p = 4/9 . 36 = 16
q = 5/9 . 36 = 20
p-q = 16 - 20 = -4