Discussion Forum



1)

Three numbers are in the ratio 4:5:6 and their average is 25. The largest number is :


A) 30

B) 32

C) 36

D) 42

E) 45

Answer:

Option A

Explanation:

Let the numbers be $4x$, $5x$ and $6x$.
Then, $\frac{4x+5x+6x}{3}=25$
$\Leftrightarrow 5x = 25 \Leftrightarrow x = 25$.
$\therefore Largest number = 6x = 30$.