Login / Signup

Question

Find sum of first n terms: 2 + 6 + 12 + 20 + 30 + …

A n(n-2)(n+1)/3

B n(n+1)(n+2)/3

C n(n+1)(n-2)/5

D n(n-1)(n-2)/3

Practice Next

More Series Questions

Given below are two numbers series 'I' and 'II' where the missing number in series I and II are 'P' and 'Q', respectively. Which among the given options gi...
12 13 30 99 412 ?
632, 560, 494, 434, ?, 332
12 8 6 12 4.5 15 18 a b c d e What wo...
3601       3602         1803       604     &n...
3      15      35       63       99       ?
125         36           343      &...
217 267 304 330 348 357
31 48 67 90 ? 150
1930       1805       1589       1246    &nbs...

Hey! Ask a query

ask-question