In each of the following question, there is a certain relationship between two given numbers on one side of (::) and one number is given on another side of (::) where another number is to be found from the given alternatives, having the same relationship with this number as the numbers of the given pair bear. Choose the best alternative.
6 : 2 :: 7 : ?
Show answer & explanation
Correct answer: B
Explanation
Just as
6 : 2
6 – 4 = 2
Similarly
7 : ?
7 – 4 = 3