Math, asked by davpehowaneetu, 9 months ago

21:145::13:962::61:257::51:?

Answers

Answered by amitnrw

3

Answer:

226

Step-by-step explanation:

21:145::13:962::61:257::51:?

21 : 145

21 - 12

12² = 144

144 + 1 = 145

13 : 962

13 - 31

31² = 961

961 + 1 = 962

61 : 257

61 - 16

16² = 256

256 + 1 = 257

51 : ?

51 - 15

15² = 225

225 + 1 = 226

Rule is

ab : c

=> (ba)² + 1 = c

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