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Common Difference

The first ter...

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The first term of an AP is 5 ,the last term is 45,sum of all its term is 400. find the number of terms and the common difference.

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The first and the last terms of an AP are 5 and 45 respectively. If the sum of all its terms is 400, Find its common difference.

Q. The first and the last terms of an AP are 5 and 45 respectively. If the sum of all its terms is 400, find the common difference and the number of terms. [CBSE 2012, 14]

Q. The first term of an AP is

5

, the last term is

45

400

. Find the number of terms.

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

Q. The first term of an AP is

5

45

400,

then the number of terms and common difference of the series are respectively :

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