195Q:
The third proportional to 9 and 12 is ?
A) 14 B) 16
C) 18 D) 20
The third proportional to 9 and 12 is
Answer: B) 16
Explanation:
Let the third proportion to 9 & 12 be ‘x’.
=> 9:12 = 12 :p
=> p = 12×12/9 = 16.
Subject: Ratios and Proportions – Quantitative Aptitude – Arithmetic Ability
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