50% of 40= 20 25%(half of 50%)=10 5%(a 5th of 25%)=2 10%=4 20%=8 30%=12 40%=16 50%=20 (And so on...) Percents are easily understood if you know what to do to break down a problem into pieces. :]
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8 / 0.4 = 20 Therefore, 8 is 40 percent of 20.
40 - (20%) = 32
20% of 40 dollars is 8 dollars. 40*0.2=8
40%
8 divided by 40 = 0.2 = 20%