Select the option in which the two numbers are related in the same way as are the numbers in the given number-pair.

(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)

17 : 19

29 : 31

17 : 19

The logic followed here is :

Ist number + 2 =   second number

17 + 2 =19

Therefore

29 : 31

29 +2 = 31