Question

which number should replace the questions mark in the grid ​

Answer 1

Solution: 8282

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Answer 2

Required Answer

• 8281 (at third row ; third column)

$\sf \: \dashrightarrow \underline{Explanation}$

Logic behind this -

• Look at the numbers in the very first row i.e 23, 529 and 1024.

Conclusion :- The square of 23 is 529 whereas the square of the reverse of 23 i.e, 32 is 1024.

• Look at the numbers of the very second row i.e, 21, 441 and 144.

Conclusion :- The square of 21 is 441 whereas the square of the reverse of 21 i.e, 12 is 144.

Thus, 'overall conclusion' drawn is that the second number of every row is the square of the first number of the same row and the third number of every row is the square of the inverse of the first number of the same row.

Therefore, Strategy for Third Row ;;

With respect to First number - (i.e 19)

1. Second number = (19)² = 361
2. Third number = (91)² = 8281

‎

∴ 8281 is the required missing number

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