Question : Directions: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_ cb _ ca _ bacb _ ca _ bac_ d
Option 1: badddb
Option 2: bbbddd
Option 3: addddb
Option 4: addbbb
Correct Answer: addddb
Solution :
Given:
_ cb _ ca _ bacb _ ca _ bac_ d
To fill the series we have to divide the series→
_ cb _ / ca _ b / acb _ / ca _ b / ac_ d
Let's check each option –
First option:
badddb;
b
cb
a
/ ca
d
b / acb
d
/ ca
d
b / ac
b
d
(No repeated pattern has been found.)
Second option:
bbbddd;
b
cb
b
/ ca
b
b / acb
d
/ ca
d
b / ac
d
d
(No repeated pattern has been found.)
Third option:
addddb;
a
cb
d
/ ca
d
b / acb
d
/ ca
d
b / ac
b
d (acbd and cadb are repeated alternatively.)
Fourth option:
addbbb;
a
cb
d
/ ca
d
b / acb
b
/ ca
b
b / ac
b
d
(No repeated pattern has been found.)
So, the series becomes→acbdcadbacbdcadbacbd. Hence, the third option is correct.
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