Lemons Contain More Sugar Than Strawberries

do you know lemons contain more sugar than strawberries ,strawberries has 30% of sugar and lemon has 30% more sugar in it lemon contain 70% sugar in it ,and the reason of why lemons are not sweet if they have 30% more sugar then strawberries ,the amount of citric acid in lemon which make it sour not sweet lemon has 3 to 7% of acid content in lemon that make it sour high amount of citric acid change the sweetness to sour