Q2 of 69 Page 61

Write an A.P. whose first term is a and common difference is d in each of the following.

a = 10, d = 5

a = 10, d = 5


Let a1 = a = 10


Since, the common difference d = 5


Using formula an + 1 = an + d


Thus, a2 = a1 + d = 10 + 5 = 15


a3 = a2 + d = 15 + 5 = 20


a4 = a3 + d = 20 + 5 = 25


Hence, An A.P with common difference 5 is 10, 15, 20, 25,….


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