Of the 100 passengers who entered a railroad station, 10 passengers had 4 pieces of luggage each, 20 had 5 pieces...

[BTGmoderatorLU]

Source: GMAT Prep

Of the 100 passengers who entered a railroad station, 10 passengers had 4 pieces of luggage each, 20 had 5 pieces of luggage each, 50 had 2 pieces of luggage each, and the rest had no luggage. What was the average (arithmetic mean) number of pieces of luggage per passenger?

A. 1
B. 1.4
C. 2
D. 2.4
E. 3

The OA is D

[Scott@TargetTestPrep]

Source: GMAT Prep

Of the 100 passengers who entered a railroad station, 10 passengers had 4 pieces of luggage each, 20 had 5 pieces of luggage each, 50 had 2 pieces of luggage each, and the rest had no luggage. What was the average (arithmetic mean) number of pieces of luggage per passenger?

A. 1
B. 1.4
C. 2
D. 2.4
E. 3

The OA is D

Solution:

The average number of pieces of luggage per passenger is:

(10 x 4 + 20 x 5 + 50 x 2 + 20 x 0) / 100 = (40 + 100 + 100 + 0) / 100 = 240/100 = 2.4

Answer: D