Question
Select the option that is related to the first number in
the same way as the third number is related to fourth number and the fifth number is related to sixth number. 85 : ? :: 335 : 43 : 743 : 74Solution
Square of digits of 3rd number is added to obtain 4th number. 335 = (3² + 3² + 5²) = (9 + 9 + 25) = 43. Square of digits of 5th number is added to obtain 6th number. 743 = (7² + 4² + 3²) = (49 + 16 + 9) = 74. Similarly, Square of digits of 1st number is added to obtain 2nd number. 85 = (8² + 5²) = (64 + 25) = 89.
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