The quantity that must be added to each term of a : b, so as to make i – McqOptions

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1.	The quantity that must be added to each term of a : b, so as to make it c : d, is
A.	ab - cd/a - b
B.	ac + bd/c + a
C.	ad + bc/c + d
D.	ad - bc/c - d
Answer» E.

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