Question

1.Jika p:q=4:5 dan p+q=36, maka p-q =...........
2.Hasil dari (27)2/3 +(32) -2/5

Answer 1

5p=4q
p=36-q
5(36-q)=4q
180-5q=4q
180=9
q=20
p=16
16-20=-4

Answer 2

1) p : q = 4 : 5
p+q = 36
p-q = (4-5)/(4+5) x 36
     = -1/9 x 36
     = -4

2)