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If the 5th and 12th terms of an A.P. are...

If the 5th and 12th terms of an A.P. are 30 and 65 respectively, what is the sum of first 0 terms?

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The correct Answer is:
21,23,25
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CHETAN PUBLICATION-ARITHMETIC PROGRESSION -PROBLEMS FOR PRACTICE
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  2. Find the eighteenth term of the A.P.1,7,13,19.

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  3. Find t11 from the following A.P. 4,9,14,….

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  7. How many two digit natural numbers are divisible by 5?

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  8. Obtain the sum of 56 terms of an A.P. whose 19^(th) and 28^(th) terms ...

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  10. Split 69 in three parts such that they are in A.P. and product of two ...

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  14. How many terms of the A.P.: 9,17,25,..... must be taken to give a sum ...

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