Answer:
1.65l
Explanation:
To make orange squash you need 11 parts of water and 2 parts of concentrate. The 1.95 liters are made out of 13 parts, from which 11 are water.
1 part = 1.95l / 13 = 0.15l
11 parts = 0.15l * 11 = 1.65l
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