Gillian had 80 black stamps and 40 white stamps. Gillian gave away 20% of her black stamps and 60% of her white stamps. What percentage of her stamps left was white?
Percentage of black stamps left
= 100% - 20%
= 80%
Number of black stamps left
= 80% x 80
= 80100 x 80
= 64
Percentage of white stamps left
= 100% - 60%
= 40%
Number of white stamps left
= 40% x 40
=
40100 x 40
= 16
Total number of stamps left
= 64 + 16
= 80
Percentage of stamps left that are white
=
1680 x 100%
= 20%
Answer(s): 20%
