Question : Directions: Which one set of letters/numbers when sequentially placed at the gaps in the given letter series shall complete it?
a _ ca _ c _ dc _ d _ ad _
Option 1: ddacdc
Option 2: daadca
Option 3: dadaac
Option 4: ddaacc
Correct Answer: ddaacc
Solution :
Given:
a _ ca _ c _ dc _ d _ ad _
To fill the series we have to divide the series – a _ c / a _ c / _ dc / _ d _ / ad _
Let's check each option –
First option:
ddacdc; a
d
c / a
d
c /
a
dc /
c
d
d
/ ad
c
(No repeated pattern has been found.)
Second option:
daadca; a
d
c / a
a
c /
a
dc /
d
d
c
/ ad
a
(No repeated pattern has been found.)
Third option:
dadaac; a
d
c / a
a
c /
d
dc /
a
d
a
/ ad
c
(No repeated pattern has been found.)
Fourth option:
ddaacc; a
d
c / a
d
c /
a
dc /
a
d
c
/ ad
c
(adc is repeated in the series.)
So, the series becomes→adcadcadcadcadc. Hence, the fourth option is correct.
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