1.

If \(\frac b a = 0.7,\) find the value of \(\frac {a-b}{a+b} + \frac {11}{34}.\)1. 12. 0.23. 0.34. 0.5

Answer» Correct Answer - Option 4 : 0.5

GIVEN:

\(\frac b a = 0.7\)

CALCULATION:

\(\frac {a-b}{a+b} + \frac {11}{34}\)

 \(⇒ \frac {1-b/a}{1 + b/a} + \frac {11}{34}\)

⇒ (1 - .7)/(1 + .7) + 11/34

⇒ .3/1.7 + 11/34

⇒  .17 + .33

⇒ .5

∴ \(\frac {a-b}{a+b} + \frac {11}{34}\) = .5



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