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Complete the series: 15, 26, 35, 50, ?
64
65
63
61
Complete the series: IV, JW, KX, ?
MY
LX
LY
YL
Complete the series: MZ, NA, OB, ?
PB
PC
CP
QC
Complete the series: D3, E8, F13, G18, ?
H23
I23
H24
H28
Complete the series: DED, FGF, HIH, ?
JJK
JKJ
KLK
JLJ