By observing the above pattern, find
(i) 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10
(ii) 2 + 4 + 6 + 8 + 10 + …….. + 100
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Answer:
20+30+40+50+60+70+80+90
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