In the following question, select the related number pair from the given alternatives._x005F_x000D_ 31 : 42 : : ? : ?

In the following question, select the related number pair from the giv

1.	In the following question, select the related number pair from the given alternatives._x005F_x000D_ 31 : 42 : : ? : ?
A.	53 : 64
B.	1.9993055555556
C.	61 : 73
D.	1.8569444444444
Answer» B. 1.9993055555556