Question
PSLE
Letters D, V and U formed a patten as shown below.

D V U V D D V U V D D V U V D . . .

If there are 129 'D', what is the greatest possible number of letters in the pattern?
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PSLE
Letters D, V and U formed a patten as shown below.

D V U V D D V U V D D V U V D . . .

If there are 129 'D', what is the greatest possible number of letters in the pattern?