Question

If the sequence belwo continues according to the pattern shown, what is the sum of first 305 terms of the sequence:

-3, 0, 6, -3, 0, 6, -3, 0, 6, -3, 0, 6, ...

Answer 1

if we divide the series in sets of 3 nos. i,e, {-3,0,6} = 1 set
we see each set evolves sum =3
so sum upto first 303 terms i.e. 101 sets = 101 * 3 =303
next 2 terms are -3,0//
so final sum is 303-3+0 = 300..which should be the ans..

Answer 2

Uh, the only answer options given are:

a to d viz,

-305
305
-610
610

Answer 3

i'd still stick to my ans..these might be wrong..hmmn..

Answer 4

the answer is 300

Answer 5

what @shubhamsrg said is r8