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The first term of an A.P. is 5, the last...

The first term of an A.P. is 5, the last term is 45 and sum is 400. Find the number of terms and the common difference.

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To solve the problem step by step, we will use the formulas related to the Arithmetic Progression (A.P.). ### Step 1: Identify the given values We are given: - First term (a) = 5 - Last term (a_n) = 45 - Sum of n terms (S_n) = 400 ...
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