last term of the arithmetic progression 8,15,22,........Is 218.Find the number of terms
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Answered by
81
218 = 8 +(n-1)7
210 = (n-1)7
30 = n-1
n = 31
hence there are 31 terms in the given A. P
210 = (n-1)7
30 = n-1
n = 31
hence there are 31 terms in the given A. P
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Answered by
14
a = 8
d = 15 - 8 = 7
an = 218
n = ?
an = a + (
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