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Maria has a 45-minute lunch break. During the break, she will walk 5 minutes to another floor, say “hello” to 5 different friends, spend equal time with each friend, and then taking 5 minutes to walk back to her desk. How long can she spend with each friend?

Respuesta :

7 minutes, she spends 5 minutes to walk to another floor and 7 minutes with all her 5 friends, and then 5 minutes to walk back to her desk. 5 + 7 x 5 + 5 = 45

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