Problema Solution
At a busy New York office, 1/3 of the employees commute by train, and 1/5 commute by bus. 1/2 of the train commuters travel more than 1 hour daily, but only 1/6 of the bus commuters travel more than an hour. If there are 660 employees at the company, how many travel less than an hour to work
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1/3 of the employees commute by train or:
(1/3)*660 = 220
1/2 of the train commuters travel more than 1 hour daily:
(1/2)220 = 110
1/5 commute by bus:
(1/5)660 = 132
only 1/6 of the bus commuters travel more than an hour:
(1/6)132 = 22
the total of employees that travel more than an hour is:
110 + 22 = 132
the rest travel less than and hour or:
660 - 132 = 528
528 employees travel less than an hour to work.