Question

DIRECTION: In the following series, replace the question mark (?) with the suitable option.
2, 6, 21,88_?
(A) 442
(B) 455
(C) 475
(D) 445​

Answer 1

Answer:

It's tough.

Step-by-step explanation:

I actually don't know the answer, but this I could tell you, if you use Lagrange Interpolation or maybe Newton's forward Interpolation, you might obtain a result.

If you don't know what these are, go surf the web.

If it's meant to be done with something simpler... sorry, no idea!

N.B. - Please let me know the answer.