1,3,1=069

2,1,3=187

3,2,4=276

4,3,7=363

5,1,9=?

Taking the first row of numbers 1,2,3,4,5. Each one is 1 number apart from the next making the first number 4.

Same as the pattern in the first row of answers 0,1,2,3,4

2nd row 3,1,2,3,1. 3-1=2 2-1=1 3-2=1

Same applies in the 2nd row of answers 6,8,7,6.

8-6=2 8-7=1 7-6=1. So if the last number in the 2nd row of the question are 2 numbers apart, so will your 2nd# in your answer from the last number in the 2nd row (6+2=8)

Row 3 same method applies to the pattern in the question and answer.

So 5,1,9= 481