Ratio and Proportion - Quantitative Aptitude (MCQ) questions for Q. 21058

Q.  If a : b : : 3 : 5, b : c : : 4 : 3 and c : d : : 4 : 5, a : d = ?
- Published on 19 Apr 16

a. 4 :5
b. 16 : 25
c. 64 : 25
d. 64 : 125
e. 16 : 125

ANSWER: 16 : 25
 
a/b * b/c * c/d = 3/5 * 4/3 * 4/5 = 42/52 = 16/25
a : d = 16 : 25

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