Which letter will be sixth to the left of the nineteenth letter from the right end, in the following alphabets series.

A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z

B

$\text{Total letters} = 26$

$\text{19th from right} = 26 - 19 + 1 = 8^{th} \text{ from left}$

$\text{6th to the left of this} = 8 - 6 = 2^{nd} \text{ from left}$

$\text{2nd letter} = B$

The required letter is B.