Decimal - Quantitative Aptitude (MCQ) questions for Q. 21467

Q.  If 1.5 a = 0.03 b, then the value of (b – a)/ (b + a) is
- Published on 04 May 16

a. 490/51
b. 49/51
c. 4.9/51
d. None of these

ANSWER: 49/51
 
a/b = 0.03/1.5 = 3/150 = 1/50
(b – a)/(b + a)
= (1 – a/b)/((1 + a/b)
= (1 – 1/50)/ (1 + 1/50)
= 49/51

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