Three numbers are in the ratio 4 : 5 : 6 and their average is 42 . The largest number is: Select the correct option:
A) 28
B) 32
C) 36
D) 50.4
E) 45
Explanation:   Let the numbers be 4x, 5x and 6x. Therefore,   (4x+5x+6x)/3 = 42   15x = 126   x = 8.4   Largest number = 6x = 50.4.   ANSWER 50.4
<result>D</result>
Three numbers are in the ratio 4 : 5 : 6 and their average is 42 . The largest number is: