If the sum of first 7 terms of an AP is ...

If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms.

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If the sum of 7 terms of an A.P. is 49 and that of 17 terms is 289, find the sum of n terms.

The sum of first 7 terms of an A.P. is 49 and that of first 17 terms of it is 289. Find the sum of first n terms.

The sum of first 8 terms of an A.P. is 64 and that of first 15 terms is 225. Find the sum of its first 17 terms.

The sum of 8 terms of an A.P. is 64 and sum of 17 terms is 289. Find the sum of its 'n' terms.

If sum of first 6 terms of an AP is 36 and that of the first 16 terms is 256 , then find the sum of first 10 terms.

The sum of first 7 terms of an A.P. is 10 and that of next 7 terms is 17. Find the progression.

The sum of first p- terms terms of an A.P. is q and the sum of first q terms is p, find the sum of first (p + q)

If the sum of first 20 terms of an A.P. is same as the sum of its first 28 terms, find the sum of its 48 terms.

If the sum of the first 14 terms of an AP is 1050 and its first term is 10 , find the 20th term .

X BOARD PREVIOUS YEAR PAPER ENGLISH-CBSE BOARDS 2020-SECTION C

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