Victoria, Fanny and Rachel have 84 coins. Victoria has
34 as many coins as Fanny. Rachel's coins is
15 of the total number of Victoria's and Fanny's coins. How many coins must Fanny give to Rachel so that both Victoria and Rachel will have the same number of coins?
| Victoria |
Fanny |
Rachel |
Total |
5x7 =
35 u |
1x7 =
7 u |
|
3x5 =
15 u |
4x5 =
20 u |
|
|
| 15 u |
20 u |
7 u |
84 |
Total number of coins
= 15 u + 20 u + 7 u
= 42 u
42 u = 84
1 u = 84 ÷ 42 = 2
| Victoria |
Fanny |
Rachel |
Total |
| 15 u |
20 u |
7 u |
84 |
| |
- 8 u |
+ 8 u |
|
| 15 u |
12 u |
15 u |
84 |
Number of coins that Fanny must give to Rachel
= 15 u - 7 u
= 8 u
= 8 x 2
= 16
Answer(s): 16
