5 25 29 85 89 ?

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Answer: 145. Explanation: Sum of the squares of the digits of the previous number. 5×5=25 (2×2)+(5×5)=29 (2×2)+(9×9)=85 (8×8)+(5×5)=89 (8×8)+(9×9)=145

(1×1)+(4×4)+(5×5)=42

125. 25 – 5 = 20 25 + 4 = 29 85 – 29 = 56 85 + 4 = 89 56 – 20 = 36 89 + 36 = 125

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Answer:145.Explanation:Sum of the squares of the digits of the previous number.5×5=25

(2×2)+(5×5)=29

(2×2)+(9×9)=85

(8×8)+(5×5)=89

(8×8)+(9×9)=145

(1×1)+(4×4)+(5×5)=42

125.

25 – 5 = 20

25 + 4 = 29

85 – 29 = 56

85 + 4 = 89

56 – 20 = 36

89 + 36 = 125