Getallestelsels: RGP#2

Bepaal die volgende:

a) 30% van 120
b) 42% van R540
c) 15% van 20% van 200

a)
$table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 30 percent sign space v a n space 120 end cell row blank equals cell fraction numerator 3 up diagonal strike 0 over denominator 1 up diagonal strike 0 up diagonal strike 0 end fraction cross times fraction numerator 12 up diagonal strike 0 over denominator 1 end fraction end cell row blank equals cell fraction numerator 3 cross times 12 over denominator 1 cross times 1 end fraction end cell row blank equals cell 36 over 1 end cell row blank equals 36 end table$

b)
$table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 42 percent sign space v a n space R 540 end cell row blank equals cell 42 over 100 cross times 540 over 1 end cell row blank equals cell fraction numerator 42 cross times 540 over denominator 100 cross times 1 end fraction end cell row blank equals cell 22680 over 100 end cell row blank equals cell R 226.80 end cell end table$

c)
$15 percent sign space v a n space 20 percent sign space v a n space 200 equals fraction numerator 15 over denominator 10 up diagonal strike 0 end fraction cross times fraction numerator 2 up diagonal strike 0 over denominator 1 up diagonal strike 00 end fraction cross times fraction numerator 2 up diagonal strike 00 over denominator 1 end fraction equals fraction numerator 15 cross times 2 cross times 2 over denominator 10 cross times 1 cross times 1 end fraction equals fraction numerator 60 divided by 10 over denominator 10 divided by 10 end fraction equals 6$