A shirt is made of cotton and polyester only . Then which of the follo...
Possible Composition of Shirt
There are four options provided in the question as follows:
A. 2/5 part cotton and 3/5 part polyester
B. 70% part cotton and 2/9 part of polyester
C. 7/9 part cotton and 2/9 part polyester
D. 50% cotton and 20% polyester
Correct Option
Out of the given options, only option C, i.e., 7/9 part cotton and 2/9 part polyester, can be a possible composition of the shirt.
Explanation
A shirt is made of cotton and polyester only. Therefore, the composition of the shirt can only be in terms of these two materials, and the sum of the composition should be equal to 1 or 100%.
Option A: 2/5 part cotton and 3/5 part polyester - The sum of the parts is 2/5 + 3/5 = 1, but the values are not in percentage. Therefore, this option is incorrect.
Option B: 70% part cotton and 2/9 part of polyester - The sum of the parts is 70% + 2/9 = 0.877, which is not equal to 1. Therefore, this option is incorrect.
Option C: 7/9 part cotton and 2/9 part polyester - The sum of the parts is 7/9 + 2/9 = 1. Therefore, this option is correct.
Option D: 50% cotton and 20% polyester - The sum of the parts is 50% + 20% = 70%, which is not equal to 1. Therefore, this option is incorrect.
Conclusion
Option C, i.e., 7/9 part cotton and 2/9 part polyester, is the correct answer as it satisfies the condition of the sum of the parts being equal to 1.
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