19, 25, 32, 40, ?, 59

Answer: 49

Explanation:

• Compute differences between consecutive terms: 25 - 19 = 6, 32 - 25 = 7, 40 - 32 = 8.

• The differences increase by 1 each time, so the next difference is 9.

• Next term = 40 + 9 = 49.

• Verify: 49 + 10 = 59, which matches the final given term.