Question : Directions: Which one set of letters/numbers when sequentially placed at the gaps in the given letter series shall complete it?
_sr_tr_srs_r_srst_
Option 1: ttssrr
Option 2: tsrtsr
Option 3: strtrs
Option 4: tstttr
Correct Answer: tstttr
Solution :
Given:
_sr_tr_srs_r_srst_
To fill the series we have to divide the series – _sr_tr /_srs_r /_srst_
Let's check each option –
First option:
ttssrr;
t
sr
t
tr
/
s
srs
s
r
/
r
srst
r
(No repeated pattern has been found.)
Second option:
tsrtsr;
t
sr
s
tr
/
r
srs
t
r
/
s
srst
r
(No repeated pattern has been found.)
Third option:
strtrs;
s
sr
t
tr
/
r
srs
t
r
/
r
srst
s
(No repeated pattern has been found.)
Fourth option:
tstttr;
t
sr
s
tr
/
t
srs
t
r
/
t
srst
r
(tsrstr is repeated in the series.)
So, the series becomes→tsrstrtsrstrtsrstr. Hence, the fourth option is correct.
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