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1. Francis is filling a stack of 9cm high toy boxes and another stack of
12cm high shoe boxes. At what height in cm will the stacks be the same?

2. A telecom commercial is being aired on three popular radio stations. The commercial is aired every 20minutes on radio station A. Radio station B airs it every 25 minutes. Radio station C airs it every 60 minutes If the three stations aired it at the same time at 7:00 am., at what time will the commercial be aired at the same time again?

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Answer:

popular radio stations. The commercial is aired every 20minutes on radio station A. Radio station B airs it every 25 minutes. Radio station C airs it every 60 minutes If the three stations aired it at the same time at 7:00 am., at what time will the commercial be

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