23 | 529 | 1024 |
21 | 441 | 144 |
19 | 361 | ? |
A) 1441
B) 3529
C) 8281
D) 9361
Correct Answer: C
Solution :
In each row, the second number is the square of the first number, and the third number is the square of the number obtained by interchanging the digits of the first number. \[\therefore \] Missing number \[={{(91)}^{2}}=8281.\]You need to login to perform this action.
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