Zad 31
a) 50% = 40
(x2) 100 % = 80
b) 50 % = 3,2
(x2) 100% = 6,4
c) 25% = 12
(x4) 100& = 48
d) 25% = 1,5
(x4) 100% = 6
e) 10% = 7
(x10) 100% = 70
f) 10% = 2,3
(x10) 100% = 23
g) 1% = 4
(x100) 100 % = 400
h) 1% = 0,3
(x100) = 30
i) 200% = 90
(:2) 100% = 45
zad 32
a) 20 % = 6
(x5) 100% = 30
b) 60% = 36
(:6) 10% = 6
(x10) = 60
c) 90% = 180
(:9) 10% = 20
(x10) = 200
d) 40% = 90
(:10) 4% = 9
(x25) 100% = 90
e) 30% = 120
(:3) 10% = 40
(x10) 100% = 400
f) 90% = 270
(:9) 10% = 30
(x10) 100% = 300
g) 17% = 510
(:17) 1% = 30
(x100) 100% = 3000
h) 15% = 450
(:15) 1% = 30
(x100) 100% = 3000
i) 13% = 390
(:13) 1% = 30
(x100) 100% = 3000