Question

Find the letters which will continue the series:

$DCBA,WXYZ,HGFE,STUV,LKJI,....$

• A. $NOPQ$
• B. $MNOP$
• C. $OPQR$
• D. $ONML$

Answer 1

Answer: (C)

$OPQR$

Pattern is

${}^{4}D{}^{3}C{}^{2}B{}^{1}A;W_4{X}_3{Y}_2{Z}_1,$

${}^{8}H{}^{7}G{}^{6}F{}^{5}E;S_8{T}_7{U}_6{V}_5,$

${}^{12}L{}^{11}K{}^{10}J{}^{9}I;O_{12}{P}_{11}{Q}_{10}{R}_9,$

$\therefore$ Missing letters $OPQR$