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1 + 3 + 5 + 7 +..........x = 12544 ; x is the last term of the sequence. What will be the value of x ?

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posted Apr 2, 2015 by Divya Bharti

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1 Solution

+3 votes

12544=n/2 *(2*1+(n-1)*2)
n=112
So
Last term=a+(n-1)*d=1+(112-1)*2
=223

solution Apr 2, 2015 by Jaspalsingh Parmar



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