Q10 of 89 Page 45

What is the common difference of an AP in which a18 - a14 = 32 ?

As we know, nth term of an AP is


an = a + (n - 1)d


where a = first term


an is nth term


d is the common difference


a18 - a14 = a + 17d - (a + 13d)


32 = 4d


d = 8


so common difference is 8

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