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+1 vote
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in Mathematics by (130k points)
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The 17th term of an AP exceeds its 10th term by 7. Find the common difference.

1 Answer

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Best answer

Solution:
Let a be the first term and d be the common difference of A.P.

17th term of A.P t17 = a + 16d.

10th term of A.P is t10 = a + 9d.

Given that 17th term of an A.P exceeds its 10th term by 7.

a + 16d = a + 9d + 7

7d = 7

∴ d = 1

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