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Knowledge Expert
· commented
· 1 Months ago
Q1F, S2E, U6D, W21C, ?
Its combination of three series:
1st:
Q S U W ?
(Add +2 in preceding term, so W+2 =Y=?)
2nd:
1 2 6 21 ?
(1*1+1 = 2, 2*2+2 = 6, 6*3+3 =21, 21*4+4=88=?)
3rd:
F E D C ?
(subtract -1 in preceding term , so C-1 = B =?)
So, Required answer = Y88B
Dharit Roy
· commented
· 1 Months ago