To begin with the amount of lemonade in a jug was 5 times the amount in a cup. Another 150 ml was then poured into each if the containers. The amount of lemonade in the jug was then 3 times the amount in the cup. How much lemonade was in the jug to begin with?

Answer 1

cup = x
jug = 5x
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5x+150 = 3(x+150)
x = 150
So the jug started with 5x = 750 ml
check:
after adding 150 ml, the jug had 900 and the cup had 300.