Select the option which is related to the third number

Solution

The logic followed here is as follows: The sum of the squares of the digits of the 1^st number gives the 2^nd number. Similar logic is followed for the 3^rd number, 4^th number and 5^th number, 6^th number). For 37 : 58 →  3² + 7² = 9 + 49 = 58 For 82 : 68 → 8² + 2² = 64 + 4 = 68 Similarly, for 46 : ? → 4² + 6² = 16 + 36 = 52 So, '52' is related to the third number in the same way as the second number is related to the first number and the sixth number is related to the fifth number.