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If 6x - 10y = 0 and x/(x + y) = 5/7, the...

If 6x - 10y = 0 and `x/(x + y) = 5/7,` then (x-y) = ?

A

6

B

8

C

12

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
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ARIHANT SSC-LINEAR EQUATIONS-Exercise Basic Level Questions
  1. I. If 2x + 3y = 29 and y = x + 3, what is the value of x?

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  2. If 3x+7y=75 and 5x-5y=25, what is the value of x+y

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  3. The cost of 2 sarees and 4 shirt is rs 16000 while 1 saree and 6 shirt...

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  4. Deepak has some hens and some goats. If the total number of animal hea...

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  5. The sum of the two digits of a two-digit number is 15 and the diffe...

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  6. The number of a fraction is 6x+1 and the denomination is 7-4x x can ha...

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  7. If x/4+y/3=10/24 and x/2+y=1, then the value of (x+y) is

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  8. If (x+y-8)/2 = (x+2y-14)/3 = (3x+y-12)/11, then find the values of x a...

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  9. The cost of 21 pencils and 9 clippers is ? 810. What is the total cost...

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  10. The value of k for which kx+3y-k+3=0 and 12x+ky+k, have infinite solut...

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  11. If 6x - 10y = 0 and x/(x + y) = 5/7, then (x-y) = ?

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  12. Solve 6x + 3y = 7xy and 3x + 9y = 11xy.

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  13. In a rare coin collection, there is one gold coin for every three non-...

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  14. The system of equations 2x+ 4y = 6 and 4x + 8y = 6 has

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  15. (sqrt(3 + x) + sqrt(3 - x))/(sqrt( 3 + x) - sqrt( 3 - x)) = 2 then x ...

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  16. In an examination, a student scores 4 marks for every correct answer a...

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  17. The graphs of ax + by =c, dx + ey =f will be 1. parallel if the sy...

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  18. If 3 ^( x + y) = 81 and 81 ^( x - y) = 3, then the value of x/y is:

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  19. Ten chairs and six tables together cost X 6200, three chairs and two t...

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  20. If x + y -7 =0 and 3x + y -13 = 0. then what is 4x^(2) + y^(2) + 4xy e...

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