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A  1070

B  1071

C  1072

D  1073

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C?
0

Ans will be 1073

The main point of question is , without the $1$st and last row - all other row contains 3 elements

Now, the matrix contains $50\times 50$ elements.

So, finding $P\left [ 25,26 \right ]$ not a last element of the matrix. We only have to consider $1$ st row with $2$ elements. Other all rows with $3$ elements

Now for $P\left [ 25,26 \right ]$  it will be $2+3\times 24=1074$

But here array start with $1000$

So, address of $P\left [ 25,26 \right ]$ will be $1$ less, i.e. $1073$

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