In a fabric, the ratio of cotton and synthetic is 1:4. What is the percentage of cotton in the fabric?

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Solution

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

Total = 5a

Percentage of cotton = amount of cotton 100/total
= a100/5a
= 20%

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In a fabric, the ratio of cotton and synthetic is 1:4. What is the percentage of cotton in the fabric?

Ratio of cotton and synthetic = 1:4 Let amount of cotton be a and synthetic be 4a Total = 5a Percentage of cotton = amount of cotton *100/total = a*100/5a = 20%

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

Total = 5a

Percentage of cotton = amount of cotton 100/total
= a100/5a
= 20%