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Question

# Find the missing letters by observing the pattern followed by the series:ab _ bc _ c _ ba _ c.

A
baac
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B
aabb
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C
caab
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D
aaab
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Solution

## The correct option is C caabGiven sequence is ab_bc_c_ba_c.By observing the sequence, we can get the pattern as follows:Make a group of three lettersFirst group is 'abc'Now, shift the position of letters on the left by one place, we get the next group as 'bca'Following in the same manner, we get 'cab' and 'abc' as the next two groups.Finally we get the series as abc/bca/cab/abc.Hence the correct option is caab.

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