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Bus Stops

Some people got on a bus. At the first stop, 2/5 of the people got off and 3/5 of the original number got on. At the second stop, _?_ of the people got off and 1/3 of the number that was left on the bus got on. At the last stop, _?_ of the people got off, leaving 5 people on the bus. How many people were on the bus before the bus reached the first stop?  (Both blanks represent the same value.)

(Source: Mathematics Teaching in the Middle School, Oct 1995)

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