Tammy had 120 pink erasers and 45 purple erasers. Tammy gave away 40% of her pink erasers and 60% of her purple erasers. What percentage of her erasers left was purple?
Percentage of pink erasers left
= 100% - 40%
= 60%
Number of pink erasers left
= 60% x 120
= 60100 x 120
= 72
Percentage of purple erasers left
= 100% - 60%
= 40%
Number of purple erasers left
= 40% x 45
=
40100 x 45
= 18
Total number of erasers left
= 72 + 18
= 90
Percentage of erasers left that are purple
=
1890 x 100%
= 20%
Answer(s): 20%
