Odpowiedź :
2000 - 100%
x - 3%
x= 3*2000/100
x= 60
1200 - 100%
x - 70%
x= 1200*70/100
x= 840
24000 - 100%
x - 1,5%
x = 24000*1,5/100
x= 360
60 - 100%
x - 33 ⅓%
x= 60 * 33 ⅓/100
x= 19,98
Znajdz liczbę której:
a)
20% = 40
100% = x
x= 100*40/20
x=200
b)
10% = 2,5
100% = x
x= 100*2,5/10
x= 25
c)
4% = 8
100% = x
x= 100*8/4
x= 200
d)
12% = 3,6
100% = x
x= 100*3,6/12
x= 360/12
x= 30
x - 3%
x= 3*2000/100
x= 60
1200 - 100%
x - 70%
x= 1200*70/100
x= 840
24000 - 100%
x - 1,5%
x = 24000*1,5/100
x= 360
60 - 100%
x - 33 ⅓%
x= 60 * 33 ⅓/100
x= 19,98
Znajdz liczbę której:
a)
20% = 40
100% = x
x= 100*40/20
x=200
b)
10% = 2,5
100% = x
x= 100*2,5/10
x= 25
c)
4% = 8
100% = x
x= 100*8/4
x= 200
d)
12% = 3,6
100% = x
x= 100*3,6/12
x= 360/12
x= 30
1)
3%*2000=3/100*2000=60
70%*1200=70/100*1200=840
1,5%*24000=1,5/100*24000=0,015*24000=360
33⅓%*60=10000/3*60=19,98
2)
20/100x=40
x=200
10/100x=2,5
x=25
4/100x=8
x=200
12/100x=3,6
x=30
3%*2000=3/100*2000=60
70%*1200=70/100*1200=840
1,5%*24000=1,5/100*24000=0,015*24000=360
33⅓%*60=10000/3*60=19,98
2)
20/100x=40
x=200
10/100x=2,5
x=25
4/100x=8
x=200
12/100x=3,6
x=30