Final answer:
To find the total value of 104 coins where half are £1 and half are 20p coins, calculate the value of each type separately and add them together, yielding a total of £62.40.
Step-by-step explanation:
To calculate the total value of the 104 coins when half are £1 coins and the rest are 20p coins, first we need to determine the number of £1 coins and 20p coins.
Since half of the coins are £1 coins, this means there are 104 / 2 £1 coins, which is 52 £1 coins. The other half would therefore be 20p coins, also numbering 52.
Next, we calculate the total value of the £1 coins by simply multiplying the number of £1 coins by £1.
- 52 £1 coins × £1 each = £52
For the 20p coins, we also multiply the number of 20p coins by the value of each coin.
- 52 20p coins × £0.20 each = £10.40
Finally, we add these two amounts together to find the total value of the coins in the bottle:
- Total value = £52 (from £1 coins) + £10.40 (from 20p coins) = £62.40