Question

The 100th pyramidal number is 338,350. That would make quite a stack of basketballs! What number must you add to 338,350 to get the 101st pyramidal number?
A. 1100
b. 101
c. 55
d. 338,350 E. 10.201

Answer 1

so we do
to go to the n't pyramidal number, you add n^2 to the bottom
101^2=10201=10,201
answer is E