The instruction state that Sumi may need 4/9 square yards of one type of material and 2/3 square yards of another type of material for a project. She buys exactly that amount. After finishing the project, however, she has 8/18 square yards left that she did not use. What is the total amount of square yards of material Sumi used?
A. 1/12
B. 1/9
C. 2/3
D. 10/9
E. None of these
সঠিক উত্তরঃ
C.
2/3
Explanation:
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