Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
t _ r a s _ t _ s _ a _ _ _ t _ r _ s r t
Answer & explanation
Correct answer: option 4
By using options one by one .
t _ r a s _ t _ s _ a _ _ _ t _ r _ s r t
Option 1: t s r a s r t /t s r a a r t/ t s r a s r t
Option 2: t s r a s r t /a s r a s r t/ t s r a s r t
Option 3: t s r a s r t /t s r a s r t/ t s r t s r t
Option4: t s r a s r t /t s r a s r t/ t s r a s r t
Series pattern: t s r a s r t /t s r a s r t/ t s r a s r t.
Therefore, only s r t r s r t s a follows the pattern.
Hence, the correct answer is s r t r s r t s a.