# NIELIT 2016 MAR Scientist D: 43

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Complete the series by choosing the appropriate missing term from the options given.

$\text{Z15A, W13C, ? , Q9G, N7I.}$

1. $\text{T12F}$
2. $\text{R11F}$
3. $\text{T11E}$
4. $\text{R13D}$

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$\textrm{ 1$^{st}$term is decrement by 3. Z,W,T,Q,N}$

• $Z-3=W$
• $W-3=T$
• $T-3=Q$
• $Q-3=N$

$\textrm{ 2$^{nd}$term is also decrement by 2. 15,13,11,9,7}$

• $15-2=13$
• $13-2=11$
• $11-2=9$
• $9-2=7$

$\textrm{ last term is increment by +2. A,C,E,G,I.}$

• $A+2=C$
• $C+2=E$
• $E+2=G$
• $G+2=I$

$\textrm{ so missing term is T 11 E , Option C.}$

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edited
OPTION C
66 points 1

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