A liter of petrol weighs 0.7 kg. How many liters of water will have the same weight as 10 liters of petrol if 1 liter of water weighs 1 kg?

2 answers

1 litre of petrol weights .7 kg
10 L of petrol weigh 7 kg

7 L of water weigh 7 kg,

so ....
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