Select the set in which the numbers are related in the same way as are the numbers of the following set.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their 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.)
(63, 81, 7)
(84, 49, 12)
Answer & explanation
Correct answer: option 1
(63, 81, 7)
(84, 49, 12)
The logic followed here is :
(First number ÷ Third number)2 = Second number
As
(63 ÷ 7)2 = 81
(84 ÷ 12)2 = 49
same as in option (99, 121, 9)
(99 ÷ 9)2 =121