Select the set in which the numbers are related in the same way as are the numbers of the following sets. (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 / subtracting / 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)

Q:

(63, 81, 7)
 (84, 49, 12)

• 1
  (99, 121, 9)
• 2
  (76, 234, 12)
• 3
  (12, 125, 56)
• 4
  (78, 14, 56)