Answer
Find out the how much water is left .
To prove
As given
You have a 1.5 litre bottle of water and drink 295 millilitres.
Your friend drinks 135 millilitres.
1 milllilitre = 0.001 litre
Now convert 295 millilitres and 135 millilitres in litre units.
295 millilitres = 0.001 × 295
= 0.295 litres
135 millilitres = 0.001 × 135
= 0.135 litres
Water is left = 1.5 - 0.295 - 0.135
= $ 1.07
Therefore the water is left in the water bottel is $ 1.07 .