Question

A package of colored paper contains 20 pieces of yellow paper. This represents 25% of the total pieces of colored paper in the package. Write 25% as a rate per 100 and How many total pieces of colored paper are in the package?

Answer 1

percent means parts out of 100
25%=25/100=5/20=1/4


so
20=1/4 of all paper
'of' mean smultiply
20=1/4 times all paper
multiply both sides by 4/1 to clear fraction since 4/1 times 1/4=4/4=1
80/1=4/4 times all paper
80= all paper

answe is 80 paper total