Answer this question .it's urgent .I'll brainliest good answer.the sum

1.	Answer this question .it's urgent .I'll brainliest good answer.the sum of the first four tems of an ap is 56 and last four terms is 112.if its first term is 11,then find the numbers of terms.
Answer» Answer: The sum of the last FOUR terms is 112. If its first term is 11, then FIND the number of terms. Let the A.P. be a, a + d, a + 2d, a + 3d, ... a + (n – 2) d, a + (n – 1)d. Thus, the number of terms of the A.P. is 11.

Answer this question .it's urgent .I'll brainliest good answer.the sum of the first four tems of an ap is 56 and last four terms is 112.if its first term is 11,then find the numbers of terms.

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The sum of the last FOUR terms is 112. If its first term is 11, then FIND the number of terms. Let the A.P. be a, a + d, a + 2d, a + 3d, ... a + (n – 2) d, a + (n – 1)d. Thus, the number of terms of the A.P. is 11.

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Answer this question .it's urgent .I'll brainliest good answer.the sum of the first four tems of an ap is 56 and last four terms is 112.if its first term is 11,then find the numbers of terms.​

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Answer this question .it's urgent .I'll brainliest good answer.the sum of the first four tems of an ap is 56 and last four terms is 112.if its first term is 11,then find the numbers of terms.