Select the term from the given options that can replace the question mark (?) in the given series to make it logically complete.
ZJ 10, ?, XH 40, WG 80, VF 160
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. YI 20.
Given series: ZJ 10, ?, XH 40, WG 80, VF 160
Z - 1 = Y; Y - 1 = X; X - 1 = W; W - 1 = V
J - 1 = I; I - 1 = H; H - 1 = G; G - 1 = F
10 × 2 = 20; 20 × 2 = 40; 40 × 2 = 80; 80 × 2 = 160