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If the sum of three numbers which are in...

If the sum of three numbers which are in A.P is 27 and the product of first and last is 77, then the numbers are

A

7,9,11

B

6,9,12

C

7,10,11

D

6,8,14

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The correct Answer is:
A
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AAKASH SERIES-SEQUENCE AND SERIES-Practice Exercise
  1. If the sum of three numbers which are in A.P is 27 and the product of ...

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  2. If sum of the series a- (a+d) + (a+ 2d)- (a + 3d) +….up to 21 terms is

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  3. The first term of an A.P of consecutive integers is p^(2) + 1 . The su...

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  4. The sum of n terms of an A.P is 3n^(2) +n. Then 8^(th) term of the A.P...

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  5. The ratio between the sum of n terms of two A.P.'s is 3n+8: 7n+15. The...

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  6. The sum of all integers between 50 and 500 which are divisible by 7 is

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  7. If 5^(th) term of A.P is (1)/(6) and 6^(th) term of A.P is (1)/(5) the...

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  8. The interior angles of a polygon are in A.P. if the smallest angle is ...

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  9. The sum of r terms of an A.P. is denoted by S(r ) and (S(m+1))/(S(n+1)...

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  10. The n^(th) term of an A.P is p and the sum of the first n terms is s. ...

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  11. If s(1), s(2), s(3)…..s(p) are the sums of n terms of 'p' A.P's whose ...

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  12. If a(1), a(2), a(3)…..a(n) are in A.P. with common difference d then s...

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  13. If S(1), S(2), S(3) be the sum of 10, 20, 30 terms respectively of an ...

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  14. The first, second and last terms of an A.P. are a, b, c respectively, ...

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  15. If the sum of the first ten terms of an A.P is four times the sum of i...

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  16. If a,b,c are in A.P then a((1)/(b) + (1)/(c )), b ((1)/(c ) + (1)/(a))...

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  17. If p, q, r are in A.P the p^(2) (q + r), q^(2) (r + p), r^(2) (p+q) ar...

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  18. If the A.M. between p^(th) and q^(th) terms of an A.P be equal to A.M ...

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  19. If n A.M's are inserted between two quantites a and b then their sum i...

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  20. If n A.M.'s are inserted between 4 and 96 then sum of n A.M.'s is

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  21. If n A.M.'s are inserted between 20 and 80 such that the ratio of firs...

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