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Sum of the First n Odd Natural Numbers Is Equal to n Squared

The sum of fi...

Question

The sum of first 11 consecutive odd numbers is 121. What will be the sum 13 + 15 + 17 + 19 + 21 ?

A

58

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B

111

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C

85

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D

100

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Solution

The correct option is C 85

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Sum of the first n odd natural numbers = n^2

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Sum of the First n Odd Natural Numbers Is Equal to n Squared

Standard VIII Mathematics

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