According to the question, put 30 grams of sugar into 50 grams of water.
Then sugar accounts for 30/50* 100%=60% of water.
Water accounts for 50/(30+50)* 100%= 62.5% of sugar water.
Sugar is less than water (50-30)/50* 100%=40%.
Extended data:
This kind of problem belongs to the percentage problem in mathematics.
Conversion between percentages and decimals
(1) Decimal system: Delete the percent sign and move the decimal point to the left by two places. For example, 75% can be converted into 0.75.
(2) Decimal percentage: add a percent sign and move the decimal point to the right by two places. For example, 0.62 can be converted into 62%
Description:
Conversion between percentage and fraction
(1) Percentalized fraction: Write the percentage as a fraction with the denominator of 100, and then reduce the differential.
Note: When the percentage of molecules is decimal, the molecules should be converted into integers first.
For example:
(2) Percentage of scores:
The numerator of (1) is divided by the denominator to become a decimal and then a percentage.
For example:
② Multiply the numerator denominator by a number at the same time to make the denominator 100, and then turn the denominator into a percentage sign.
For example: