You need to start with the following information:
- Coins are weighed in grams. US nickel weigh 5.0 gm; current Canadian nickel are 3.95 gm.
- A US ounce is 28.35 gm
That means 1 US ounce of:
- American nickels is 28.35 / 5.0 = 6 coins (rounded to the nearest whole number); the value is US$0.30
- Canadian nickels is 28.35 / 3.95 = 7 coins (also rounded); the value is CDN$0.35
