Răspuns:
a)
[tex] \frac{25x}{100} = \frac{60}{1} [/tex]
25x = 100 × 60
25x = 6000
x = 240
b)
[tex] \frac{50x}{100} = \frac{100}{1} [/tex]
50x = 100 × 100
50x = 10000
x = 200
c)
[tex] \frac{75x}{100} = \frac{96}{1} [/tex]
75x = 100 × 96
75x = 9600
x = 128
d)
[tex] \frac{90x}{100} = \frac{720}{1} [/tex]
90x = 100 × 720
90x = 72000
x = 800
e)
[tex] \frac{15x}{100} = \frac{12}{1} [/tex]
15x = 100 × 12
15x = 1200
x = 80
f)
[tex] \frac{175x}{100} = \frac{140}{1} [/tex]
175x = 100 × 140
175x = 14000
x = 80
g)
[tex] \frac{125x}{100} = \frac{250}{1} [/tex]
125x = 100 × 250
125x = 25000
x = 200
h)
[tex] \frac{4.8x}{100} = \frac{6}{1} [/tex]
4,8x = 100 × 6
4,8x = 600
x = 125
i)
[tex] \frac{3.6x}{100} = \frac{8.1}{1} [/tex]
3,6x = 100 × 8,1
3,6x = 810
x = 225
