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Without adding the sum find 11+13+15+17+19+21+23+25 |
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Answer» HEY mate!! I am finding by ARITHMETIC formula here a =11 ,d=13-11=2 and n=8 so, sum=n/2(2a+(n-1)d) =8/2(22+14) =4*36 =144 hope it helps!! |
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