Edugain Q&A

moths


find value of

/1+3+5+7+9+11+13+15+17+19+..............+59

Answer:

900

Solution

Step 1:

There are 30 odd numbers until 59.

 

Step 2:

1+59=60, 3+57=60...

 

Step 3:

30/2=15

 

Step 4:

60*15=900

1+3+5+7+9+11+13+15+17+19+..............................+59

it's 900

Correct...Well Done. However there is another way as well of finding the sum.

Sum of the odd number series = n*n (where n is the number of odd terms in the series)


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