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What is the sum of all the odd integers between 500 and 700?

 Jun 26, 2021
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1st odd  =  501

Last odd  =  699

Number of  odd terms    ( 699 - 501) / 2   +  1     =   100  =   n

 

Sum  =    ( first term +  last term )   (  n  / 2)  =   ( 1200) * (100/2)  =   60000

 

 

cool cool cool

 Jun 26, 2021

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