Question

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

Answer 1

Answer:

let ratio be x and 4x.

x+4x=5x

5x=100

x=20

x=20%, 4x=80%

cotton ,fabric

Answer 2

Step-by-step explanation:

let's take common multiple as x.

ratio of cotton = 1x.

ratio of synthetic fibre = 4x

total is equals to 100 %

x+ 4x = 100

5x = 100

x = 100/5

x = 20

4x = 4×20

80

percentage of cotton in the fabric = 20%

percentage of synthetic fibre in the fabric = 80%

hope it may help you.