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The ratio of present ages of Rehana and ...

The ratio of present ages of Rehana and her mother is 2:7. After 2 years the ratio of their ages will be 1:3 what is Rehana 's present age?

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CHETANA PUBLICATION-RATIO AND PROPORATION-Exercise
  1. If x/y=13/6 then find the value of (2x^2+5y^2)/(2x^2-5y^2)

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  2. If (7a^2+2b^2)/(7a^2-2b^2) =113/13, find the value of a/b

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  3. Solve the equation: (3x^2+21x+4)/(3x^227x+5)=(x+7)/(x+9)

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  4. Solve the equation: (sqrt(x+13)+sqrt(x-1))/(sqrt(x+13)-sqrt(x-1))=3 ...

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  5. If (x)/(y+z-x)=(y)/(z+x-y)=(z)/(x+y-z) and x+y+z=0 then show that each...

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  6. If (2x-3y)/(3z+y)=(z-y)/(z-x)=(x+3z)/(2y-3x), then prove that every ra...

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  7. If (a)/(y+z-x)=(b)/(z+x-y)=©/(x+y-z) then show that (x)/(b+c)=(y)/(c+a...

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  8. Which number should be subtracted from 13,25 and 55 so that resultant ...

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  9. (x-4) is geometric mean of (x-5) and (x-2) find the value of x

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  10. If (x+y)^2 , m and (x-y)^2 are in continued proportion, then determine...

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  11. 63/60=…….%

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  12. If a/b=7/3 then find the value of (5a+3b)/(5a-3b) and (5a^2+3b^2)/(5a^...

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  13. Fill in the blanks: a/3=b/4=c/7=(a-2b+3c)/……=………/(6-8+14)

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  14. Find the following ratios: The ratio of diagonal of a square to its si...

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  17. If sqrt(0.04 xx 0.4 xx a)=0.4 xx 0.04 xx sqrt(b) then find the ratio a...

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  18. The ratio of present ages of Rehana and her mother is 2:7. After 2 yea...

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  19. three numbers are in continued proportion whose mean proportional is 1...

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  20. If (y+z)/(a)=(z+x)/(b)=(x+y)/c then show that (x)/(b+c-a)=(y)/(c+a-b)=...

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