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Correct Option is 362

Solution:Using step 3 in first row 2×21=42
First row becomes= 42 9
Now, applying step 3 the resultant of first row becomes=42×9= 378
Similarly using step 4 in second row 25-19=6
Second row becomes= 6 10
Now, applying step 5 the resultant of second row becomes 6+10= 16
So, the difference between the resultant of first row and second row= 378-16=362

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