Percentages

Calculate the percentages to two decimal places:
a / 15 min in 4 hours
B / 35 cm2 of 12.5 dm2
c / 2dm2 of 400 cm2
D / 0.2 liters from 2.2 liters

Correct result:

a =  6.25 %
b =  2.8 %
c =  50 %
d =  9.09 %

Solution:

a=100 15/(4 60)=254=254%=6.25%
b=100 35/(12.5 100)=145=145%=2.8%
c=100 2/(400/100)=50%
d=100 0.2/2.2=10011=9.09%



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