Question

Without actual calculations, find the following sums.
(i) 1 + 3 + 5 + 7 + 9 + 11
(ii) 1+3+5+ 7 + 9 + 11 + 13 + 15 + 17 + 19 +21
(iii) 11 +13 + 15 + 17 +19+21 +23+25+27 +29
(iv) 13+15+17+19+21 +23​

Answer 1

(i)1+3+5+7+9+11 = 36

(ii)1+3+5+7+9+11+13+15+17+19+21 = 121

(iii)1+2+3+13+15+17+19+21+23+25+27+29= 256

(iv)its incomplete

Answer 2

Step-by-step explanation:

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