Discussion

Select the missing number from the given alternatives :

Answer: B

The missing number is 77.

In each row, the middle number is 7 times the difference between the left and right numbers:

\[ \begin{aligned} 7 \times (44 - 37) &= 49 \\ 7 \times (58 - 53) &= 35 \\ 7 \times (52 - 41) &= 77 \end{aligned} \]

The other options do not fit this rule for the second row.

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