Tammy had 120 brown buttons and 60 blue buttons. Tammy gave away 30% of her brown buttons and 65% of her blue buttons. What percentage of her buttons left was blue?
Percentage of brown buttons left
= 100% - 30%
= 70%
Number of brown buttons left
= 70% x 120
= 70100 x 120
= 84
Percentage of blue buttons left
= 100% - 65%
= 35%
Number of blue buttons left
= 35% x 60
=
35100 x 60
= 21
Total number of buttons left
= 84 + 21
= 105
Percentage of buttons left that are blue
=
21105 x 100%
= 20%
Answer(s): 20%
