Victoria and Luke collect cards and coins. Luke has 90 less cards than coins. Luke has 4 times the number of cards Victoria has, and Victoria has 20% more coins than Luke. After Victoria gives Luke all of her cards and Luke gives Victoria 60% of his coins, Luke has 32 less coins than cards. Find the number of coins Victoria has at first.
Victoria |
Luke |
Coins |
Cards |
Coins |
Cards |
4.8 u + 108 |
1 u |
4 u + 90 |
4 u |
+ 2.4 u + 54 |
- 1 u |
- 2.4 u - 54 |
+ 1 u |
7.2 u + 162 |
0 |
1.6 u + 36 |
5 u |
100%+ 20% = 120%
120% x 4 u
=
120100 x 4 u
= 4.8 u
120% x 90
=
120100 x 90
= 108
60% x 4 u
=
60100 x 4 u
= 2.4 u
60% x 90
=
60100 x 90
= 54
If another 32 coins are given to Luke, he will have equal number of coins and cards in the end.
5 u = 1.6 u + 36 + 32
5 u - 1.6 u = 68
3.4 u = 68
1 u = 68 ÷ 3.4 = 20
Number of coins that Victoria has at first
= 4.8 u + 108
= 4.8 x 20 + 108
= 96 + 108
= 204
Answer(s): 204