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x is a positive number and 3/4 : x :: x ...

x is a positive number and 3/4 : x :: x : 27/64, then the value of x is

A

9/16

B

3/4

C

16/9

D

4/3.

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UNITED BOOK HOUSE-Ratio and proportion-Exercise
  1. If a + 1/b = b + 1/c = 1, then the value of c + 1/a is

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  2. If a/3 = b/4 = c/7 = 2a - 2b + c/p, then the value of p is

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  3. x is a positive number and 3/4 : x :: x : 27/64, then the value of x i...

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  4. If x, y, z are in continued proportion, then (1)/(y^2 -x^2) + (1)/(y^2...

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  5. The mean proportional between (3 + sqrt2) and (12 - sqrt32) is

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  6. The ratio 2^1.5 : 2^0.5 is the same as

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  7. If a : b = 2/9 : 1/3, b : c = 2/7 : 5/14 and d : c = 7/10 : 3/5 then a...

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  8. To get the ratio p : q (for p not equals to q) one has to add a number...

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  9. If a : (b + c) = 1 : 3 and c : (a + b) = 5 : 7, them b : (a + c) is eq...

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  10. The ratio of 25^2.5 : 5^3 is same as

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  11. If 2a = 3b = 8c, then a : b : c equals

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  12. Tom is chasing jerry. In the same interval of time Tom jumps 8 times w...

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  13. If a : b = b : c, then a^4 : b^4 is equal to

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  14. x, 12, y and 27 are in continued proportion. Then x + y equals

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  15. If b/(a+b)= (a+c-b)/(b+c-a)=(a+b+c)/(2a+b+2c) where a+b-c !=0, show th...

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  16. If f(x + y) = f(x) +f(y), then the value of f(0)

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  17. If 0.75 : x = 5 : 8, then x is equal to

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  18. In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 ...

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  19. The salaries A, B and C are in the ratio 2 : 3 : 5. If the increments ...

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  20. Whice of following ratios is greatest?

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