Which term would come next in the following sequence?
B2, F8, J32, N128, _____________

B2, F8, J32, N128, ____

Logic: Each letter increases by 4 in the alphabet (B, F, J, N...), and each number is multiplied by 4 sequentially (2, 8, 32, 128...)

For B → F → J → N,

B + 4 = F, F + 4 = J, J + 4 = N, N + 4 = R

For 2 → 8 → 32 → 128.

2 × 4 = 8, 8 × 4 = 32, 32 × 4 = 128, 128 × 4 = 512

So, R512 is next term.

Thus, the correct answer is (b).