Math, asked by roswitawidianti, 1 year ago

The sum of 4 th term until 10 th term of an AP is 140. The sum of the second five terms is 115. If the sum of the second n term is 165, find the value of n

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Answered by messiah2k16

0

dont know bit think iys 21

roswitawidianti: Can you explain the answer. Thank you

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