Question

In a fabric the ratio of cotton and synthetic is 1:4 find the percent of cooton in the fabric

Answer 1

Ratio of cotton and synthetic = 1:4
Let amount of cotton be 'a' and synthetic be '4a'

Total amount of fabric = 5a

Percentage of cotton = (Amount of cotton in fabric/Total fabric)*100
= (a/5a)*100
= 20%