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An airline weighed the carry-on luggage of all its 1,106 passengers in a single day. The results are shown in the graph. How many of these passengers had carry-on luggage that weighed less than 20 lb?

Explanation

Using the graph, it is found that 976 passengers had carry-on luggage that weighed less than 20 lb.

Graph:
The graph is not given in this problem, but an internet search indicates that the information it contains is as follows:

120 passengers carry luggage of 4 lb or less.
222 passengers carry luggage between 5 lb and 9 lb.
378 passengers carry luggage between 10 lb and 14 lb.
256 passengers carry luggage between 15 lb and 19 lb.
90 passengers carry luggage between 20 lb and 24 lb.
40 passengers carry luggage between 25 lb or more.

Hence, the number of passengers with luggage below 20 lb is:

120+ 222+378+256= 976
976 passengers had carry-on luggage that weighed less than 20 lb.

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