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A number pattern runs 10, 20, 30, 40. The next number is:

A41
B50
C45
D60
Answer & Solution
Correct answer: B. 50
1. Each number is ten more than the one before. 2. Forty plus ten is fifty. 3. So the next number is 50. _Source: syllabus Mathematics Class II, Chapter 5, Patterns._
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