Question

Sum of first 70 odd numbers

Answer 1

Answer:

4900

Step-by-step explanation:

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Answer 2

The sum of the first 70 odd numbers" means that we want to add together the first 70 positive odd numbers. The list of the first 70 odd numbers starts with 1 and ends with 139. Thus, this is what we know:

Numbers = 70

First = 1

Last = 139

By applying formula,

(Numbers/2) x (First + Last), we get

(70/2) x (1 + 139)

= 4900

Ans: 4900

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