The same operation(s) are followed in all the given number pairs except one. Find that odd 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.)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 40 : 52.
Option 2) 45 : 54 → 45 / 9 : 54 / 9 → 5 : 6
Option 3) 35 : 42 → 35 / 7 : 42 / 7 → 5 : 6
Option 4) 55 : 66 → 55 / 11 : 66 / 11 → 5 : 6
Option 1) 40 : 52 → This pair will not come in 5 : 6 ratio.