Anna had 96 brown pens and 60 black pens. Anna gave away 25% of her brown pens and 70% of her black pens. What percentage of her pens left was black?
Percentage of brown pens left
= 100% - 25%
= 75%
Number of brown pens left
= 75% x 96
= 75100 x 96
= 72
Percentage of black pens left
= 100% - 70%
= 30%
Number of black pens left
= 30% x 60
=
30100 x 60
= 18
Total number of pens left
= 72 + 18
= 90
Percentage of pens left that are black
=
1890 x 100%
= 20%
Answer(s): 20%
