Select the pair in which the numbers are related to each other in the same way as are the numbers in the given pairs.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/deleting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
3 : 25
4 : 62
1
9 : 731
2
5 : 123
3
7 : 345
4
6 : 218