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Solution

✅ Correct Option: 3

Here a=7a = 7 and d=6d = 6.

an=a+(n−1)da_n = a + (n-1)d

205=7+(n−1)6205 = 7 + (n-1)6

198=6(n−1)198 = 6(n-1), so n−1=33n - 1 = 33 and n=34n = 34.

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