Let's assume the weight of each water bottle is x kg.
The weight of the rucksack without the bottles is 300 g, which is equal to 0.3 kg.
Therefore, the weight of the three water bottles is 1.8 kg - 0.3 kg = 1.5 kg.
Since each water bottle weighs the same, we can divide the total weight by the number of bottles to find the weight of one water bottle.
1.5 kg / 3 = 0.5 kg.
So, one water bottle weighs 0.5 kg.
A rucksack containing three bottles weighs 1.8 kg.
Each water bottle weighs the same and the empty rucksack weighs 300 g.
How much does one water bottle weigh?
1 answer