RRB NTPC · Question 43
Four pairs of numbers have been given, out of which three are alike in some manner and one is different. Select the pair that is different from the rest.
Show answer & explanation
Answer: (D) 66, 6
Explanation
In 34-3, 54-5 and 24-2 the first number ends in 4 and the second number is its tens digit. 66-6 does not end in 4, so it is different.