Question

What is the 2010th letter in the following sequence: ABCDEDCBA.

Please answer ASAP. This is due tomorrow.​

Answer 1

B

Explanation:

The sequence is ABCDEDCBABCDEDCBABCDEDCBA....

⇒The main sequence is the repitition of the sub-sequence ABCDEDCB

2010 when divided by 8 gives a quotient of 251 and a remainder of 2

251×8 = 2008

This means that after the sub-sequence ABCDEDCB is repeated for 251 times, it's last letter B is the
`2008^(th)` letter of the main sequence

Even after that, the sub-sequence ABCDEDCB keeps repeating and the
`2010^(th)` letter in the main sequence is the
`2^(nd)` letter of the sub-sequence ABCDEDCB, that is "B"