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Rohan notices that the sum of the first few odd numbers makes a pattern:
1 = 1, 1 + 3 = 4, 1 + 3 + 5 = 9, 1 + 3 + 5 + 7 = 16.
Using this pattern, what is 1 + 3 + 5 + 7 + 9 + 11?

Class 6Patterns and RulesAlgebra
  • A72
  • B32
  • C40
  • D36

Step-by-Step Solution

The sum of the first n odd numbers is n n. Here there are 6 odd numbers, so the sum is .
Answer: D) 36

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