ABC26GN2984 · Ratio and Proportion

Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: 2007 · Marks: · Difficulty:

In a proportion the product of 1st and 4th terms is 40 and that of 2nd and 3rd terms is 2.5x . Then the value of $x$ is

(a)16

(b)26

(c)75

(d)90

Answer

Answer (as printed): A

Explanation

Product of 1st and 4th terms (extremes) = Product of 2nd and 3rd terms (means) $$\Rightarrow 2.5 x=40 \Rightarrow x=\frac{40}{2.5}=16 .$$

Explanation as extracted from the printed page; notation may be imperfect.