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There are four numbers in A. P., the sum...

There are four numbers in A. P., the sum of the two extremes is 8, and the product of the middle two is 15. What are the numbers?

A

1

B

2

C

3

D

4

Text Solution

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The correct Answer is:
1
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AAKASH INSTITUTE ENGLISH-SEQUENCES AND SERIES -Assignment (SECTION - A) One option is correct
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  2. n A.M.\'s are inserted between 1 and 31 such that the ratio of the 7th...

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  3. There are four numbers in A. P., the sum of the two extremes is 8, and...

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  4. If the sum of three numbers which are in A.P is 27 and the product of ...

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  5. If n arithmetic means are inserted between 2 and 38, then the sum of t...

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  6. If S(n) denote the sum to n terms of an A.P. whose first term is a ...

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  7. If three positive numbers a, b, c are in A.P. and 1/a^2,1/b^2,1/c^2 a...

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  8. The sum of the series a-(a+d)+(a+2d)-(a+3d)+... up to (2n+1) terms is:...

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  9. about to only mathematics

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  10. about to only mathematics

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  11. If the first, second and last term of an A.P. are a ,\ b and 2a res...

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  12. Sum of first n terms of an A.P. whose last term is l and common dif...

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  13. If one geometric mean G and two arithmetic means A1a n dA2 be inserted...

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  14. The fourth term of the G.P. 4, - 2 , 1 , … is

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  15. Find: n th term of the G.P. sqrt(3),1/(sqrt(3)),1/(3sqrt(3)),

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  16. Which term of the progression 18 ,-12 ,8, i s(512)/(729)?

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  17. The third term of a G.P. is 3. Find the product of its first five term...

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  18. If (a^n+b^n)/(a^(n-1)+b^(n-1))is the A.M. between a and b, then find t...

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  19. If (2p)th term of a G.P is q^2 and (2q)th term is p^2 then (p+q)th ter...

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  20. Three number whose product it 512 are in G.P. If 8 is added to the f...

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