5 25 29 85 89 ?
Answer on Monday.
Tags: Brain Teasers, Logic Puzzles, Number Games, Puzzles
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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