Zoe had 100 gold cards and 50 silver cards. Zoe gave away 40% of her gold cards and 70% of her silver cards. What percentage of her cards left was silver?
Percentage of gold cards left
= 100% - 40%
= 60%
Number of gold cards left
= 60% x 100
= 60100 x 100
= 60
Percentage of silver cards left
= 100% - 70%
= 30%
Number of silver cards left
= 30% x 50
=
30100 x 50
= 15
Total number of cards left
= 60 + 15
= 75
Percentage of cards left that are silver
=
1575 x 100%
= 20%
Answer(s): 20%
