Lucy had 85 grey coins and 30 red coins. Lucy gave away 40% of her grey coins and 70% of her red coins. What percentage of her coins left was red?
Percentage of grey coins left
= 100% - 40%
= 60%
Number of grey coins left
= 60% x 85
= 60100 x 85
= 51
Percentage of red coins left
= 100% - 70%
= 30%
Number of red coins left
= 30% x 30
=
30100 x 30
= 9
Total number of coins left
= 51 + 9
= 60
Percentage of coins left that are red
=
960 x 100%
= 15%
Answer(s): 15%
