Directions: Find out the wrong number in each sequence 56, 72, 90, 110, 132, 150

### Concept & Logic The sequence is formed by the product of consecutive integers. $$n(n+1)$$ ### Step-by-Step Solution Let's analyze the terms: - $7 \times 8 = 56$ - $8 \times 9 = 72$ - $9 \times 10 = 90$ - $10 \times 11 = 110$ - $11 \times 12 = 132$ - $12 \times 13 = 156$ The number 150 is incorrect. It should be 156. ### Exam Strategy & Shortcut Another way to view this is by taking the differences between consecutive terms: $72 - 56 = 16$ $90 - 72 = 18$ $110 - 90 = 20$ $132 - 110 = 22$ The next difference should be $24$. So, $132 + 24 = 156$. The given number 150 is wrong. ### Common Pitfall Miscalculating the differences or not recognizing the pattern of products of consecutive numbers. ### Final Answer Therefore, the correct answer is **150**.