2Z5, 7Y7, 14X9, 23W11, 34V13, ......A27U24B45U15C47U15D47V14Answer: C. 47U15 Read Explanation: series 2, 7, 14, 23, 34, 47, ......Z, Y, X, W, V, U, ......and 5, 7, 9, 11, 13, 15, ......Read more in App