Problem
Problem
Metal coins are made from different metals. The composition of a 20-cent and a 50-cent euro coin is given below.| Coin | Mass/g | |||
|---|---|---|---|---|
| Copper | Aluminium | Zinc | Tin | |
| 20 cent | 5.11 | 0.287 | 0.287 | 0.057 |
| 50 cent | 6.94 | 0.39 | 0.39 | 0.080 |
| Coin | Mass/g | |||
|---|---|---|---|---|
| Copper | Aluminium | Zinc | Tin | |
| 20 cent | 5.11 | 0.287 | 0.287 | 0.057 |
| 50 cent | 6.94 | 0.39 | 0.39 | 0.080 |