Question
Select the option that is related to the third term in
the same way as the second term is related to the first term, and the sixth term is related to the fifth term. 42 : 12 :: 53 : ? :: 81 : 63Solution
The second number is the difference between the first number and its reverse. (42 : 18) → 42 - 24 = 18 81 : 63 → 81 - 18 = 63 53 : ? → 53 - 35 = 18
13, 14, 18, 27, 43, ?
642 202 541 312 523 ?
...6 10 ? 210 1672 16710
...3 5 7 25 85 481
...19   20   42   129   ?    2605  . Â
2 3 3 ? 49 254
...147      138       120      93      ?      12
...The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
31   48    67    90   ?      150
14 8 6 4 7 8.5
...