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Question

Choose the correct answer in each of the following questions:

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

(a) 8 (b) −8 (c) 4 (d) −4

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Solution

Let a be the first term and d be the common difference of the AP. Then,

a18-a14=32a+17d-a+13d=32 an=a+n-1d4d=32d=8

Thus, the common difference of the AP is 8.

Hence, the correct answer is option is A.

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