IIM Bangalore (UGAT) Arithmetic > Mean, Median & Mode PYQs

$\frac{n(n+1)}{2}$

$\frac{(2n+1)}{3}$

$\left(\frac{n(n+1)}{2}\right)^2$

$n\left(\frac{(n+1)}{2}\right)^2$

30

27

28

29