If 1.5a = 0.04 b then \frac{b-a}{b+a} is equal to

RRB Junior Engineer Stage 1 Model Papers 7

Question : 25 of 100

Marks: +1, -0

If 1.5a = 0.04 b then

{b-a}/{b+a}

is equal to

Solution:

1.5a = 0.04 b

b/a=1.5/0.04

By componendo and dividend,

{b-a}/{b+a}={15-0.04}/{15+0.04}=1.46/1.54=73/77

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