10/13 = 11/28 = 21/11 = 12/11 = K. What is K? – McqOptions

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1.	10/13 = 11/28 = 21/11 = 12/11 = K. What is K?
A.	6/7
B.	12/13
C.	10/11
D.	59/63
Answer» B. 12/13

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