Question

how many odd number from 1 to n in an order make sum 400?
a)20
b)30
3)50
d)25​

Answer 1

Answer:

30

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

The number series 1, 3, 5, 7, 9, . . . . , 799. Therefore, 160000 is the sum of first 400 odd numbers.

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