In the question we are given that Rahul poured 200 ml in one glass and 1 litre in the Jug
so, Total juice he poured in glass and the jug= juice poured in glass+ juice poured in jug
Total juice he poured in glass and the jug=200ml +1 litre[1 mark]
Total juice he poured in glass and the jug=200 ml+1000 ml {as 1 litre =1000 ml} 1 mark]
Total juice he poured in glass and the jug=1200 ml
Now, he drank 300 ml of juice,
so, total juice left =Total juice he poured in glass and the jug- juice he drank
total juice left=1200-300[1 mark]
total juice lef=900 ml