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if (a)/(b-a)=(7)/(8), find the value of ...

if `(a)/(b-a)=(7)/(8)`, find the value of `(a)/(b)`

A

7

B

`(15)/(7)`

C

`(7)/(15)`

D

`(-15)/(7)`

Text Solution

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The correct Answer is:
C
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PEARSON IIT JEE FOUNDATION-RATIO, PROPORTION AND VARIATION-LEVEL 1
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  3. if (a)/(b-a)=(7)/(8), find the value of (a)/(b)

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  4. Present ages of A and B are in the ratio 7:4, which of the following c...

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  5. Which of the following will result in 10,20,x and 40 being in proporti...

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  7. if x=(a-b)/(a+b+c+d)=(b-c)/(a+b+c+d)=(c-d)/(a+b+c+d) =(d-a)/(a+b+c+d...

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  8. if the ratio of the ages (in years) of A and B, 5 years ago was 5:7, t...

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  11. Incomes of A and B are Rs 3500 and Rs 4200 respectively. The ratio of ...

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  12. if the ratio of the ages (in years) of x and y, 8 years ago is 7:6, th...

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  13. If P:Q:R=2:3:4 and P^(2)+Q^(2)+R^(2)=11600, then find (P+Q-R)

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  14. If (x)/(2),(7)/(x),(3x)/(2) and (7)/(3) are in proportion, then the va...

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  15. If (3a+4b):(3a-4b)=(3c+8d):(3c-8d), then which of the following is tru...

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  16. If (p)/(q)=(r)/(s)=(t)/(u) then (p^(2)+r^(2)+t^(2))/(q^(2)+s^(2)+u^(2)...

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  17. Which of the following ratios are in ascending order?

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