Q. 3 C

# <span lang="EN-US

127, 135, 143, 151, . . .

First term a1 = 127

Second term a2 = 135

Third term a3 = 143

We know that d = an + 1 – an

Thus, d = a2 – a1 = 135 – 127 = 8

Hence, the common difference d = 8 and first term is 127

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