a) 40z / 100= 25 ==> z = 25 x 100 : 40 = 62,5 z= 62,5
b) 60t / 100 = 12 ==> t = 12x 100 : 60 = 20 t = 20
c) 80p/100 = 45 ==> p = 45x 100 : 80 = 56,25 p =56.25
d) 120 p / 100 = 36 ==> p = 36 x 100 : 120 = 30 p = 30
e) 1000 p/100 = 5 ==> p = 50 x 100 : 1000 p= 5