18,151/2,13,........-47 find the number of terms
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d = 15 1/2- 18 = -2.5
An= a+(n-1)d
-47 = 18 + (n-1) -2.5
-47-18 = -2.5n + 2.5
-65-2.5 = -2.5n
-67.5 = -2.5 n
n = 67.5/2.5
n = 27
Hence there are 27 terms
Hope u understand
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An= a+(n-1)d
-47 = 18 + (n-1) -2.5
-47-18 = -2.5n + 2.5
-65-2.5 = -2.5n
-67.5 = -2.5 n
n = 67.5/2.5
n = 27
Hence there are 27 terms
Hope u understand
Mark me as BRAINLIEST
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