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31 July, 14:27

The 8th term of an ap is 17 and 18 term is 13 find the common difference

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  1. 31 July, 17:30
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    I'm assuming you meant arithmetic progression. If the common difference is d and because 18 - 8 = 10 we can write 17 + 10d = 13. Solving for d we get d = - 0.4 or - 2/5.
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