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If the sum of first 7 terms of an A.P is...

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

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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.

If the sum of first term of an A.P is 49 and that of 17 terms is 289. Find the sum of first "n" terms. OR The sum of the third and seyenth terms of an AP is 6 and their product is 8. find the sum of first sixteen terms of the A.P.

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

The sum of the third and seventh terms of an A.P is 6 and their product is 8 find the sum of first sixteen terms of the A.P.

The sum of the third and seventh terms of an AP is 6 and their product is 8 find the sum of first sixteen terms of the A.P.

The sum of first 7 terms of an AP is 63 and the sum of next 7 terms is 161. Find a_(28) .

The sum of the first 8 terms of an A.P. is 100 and the sum of its first 19 terms is 551. Find the first term and the common difference of the AP.

If the sum of first p terms of an A.P is equal to the sum of the first q terms , then find the first (p+q) terms .

The sum of the third and the seventh terms of an A.P. is 6 and the product is 8. Find the sum of first sixteen terms of the A.P.

The sum of first 14 terms of an AP is 1505 and its first term is 10. Find its tenth term.

CPC CAMBRIDGE PUBLICATION-PRACTICE QUESTION PAPER 12-ANSWER THE FOLLOWING QUESTION
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  2. Prove that ara of the equilateral triangle described on the sides of s...

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  3. A box contains 90 dices which are numbered from 1 to 90. If one dise i...

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  4. Draw a pair of tangents to a circle of radius 5 cm which are inclined ...

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  5. Prove that (tan theta + sin theta)/(tan theta - sin theta) =(sec theta...

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  6. Asha is 5 times as old as her daughter Usha, 5 years later Asha will b...

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  7. The sum of 2 digits of a 2 digits number is 12 the number obtained by ...

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  8. Find the other two zeroes of the polynomial y^(4)+y^(3)-9y^(2)-3y+18 i...

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  9. Solve for x . 1/(a+b+x) =(1/a + 1/b + 1/x) (Where a ne 0, b ne 0 , ...

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  10. The diagonal of a rectangular filed is 60 meters more than the shorte...

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  11. If the points (7,-2) , (5,1) and (3,5) are collinear. Find the value o...

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  12. Find the area of Rhombus if its vertices are (3,0) (4,5) (-1,4) and (-...

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  13. Prove the tangents drawn from an external point to a circle are equal.

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  14. Find the area of the shaded region in the figure, where ABCD is a squa...

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  15. The distribution below gives the weights of 30 students of a class. Fi...

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  16. Solve graphically : 2x-y=2 and 4x-y=4

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  17. If the sum of first 7 terms of an A.P is 49 and that of 17 terms is 28...

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  18. The sum of the third and seventh terms of an AP is 6 and their product...

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  19. A person, walking 20 mts from a point towards a flagpost along a horiz...

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  20. In a right angled triangle , square on the hypotenuse is equal to sum ...

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