Question

By observing the above pattern, find
(i) 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10
(ii) 2 + 4 + 6 + 8 + 10 + …….. + 100
​

Answer 1

Answer:

20+30+40+50+60+70+80+90