alleryAdd the first six odd numbers 1, 3, 5, 7, 9, 11. The total is?
A21
B42
C30
D36
Answer & Solution
Correct answer: D. 36
1. The sum of the first n odd numbers is n squared.
2. n = 6 gives 6 x 6.
3. So the sum is 36.
_Source: Wikipedia, Square number (CC BY-SA 4.0), Square number_
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