Question

Reem has two bottles of water.

One is full and the other is full.

How much must Reem drink in order to be left with a bottle of water in total.

Answer 1

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Because he has 2 bottle which are full,

Let x be the water drink to be left 1 bottle of water .

1 = 2-x

x= 2-1=1

Answer 2

One because

2- (how many bottles he has to drink) =1

2- 1=1