Patricia18 Patricia18

30-08-2016
Mathematics

Answered

en un avion viajan 120 personas de las cuales

2/3 de ellas no beben

4/5 de ellas no fuman

72 no fuman ni beben

¿cuantas personas fuman y beben?

Verified Answer :

texaschic101 texaschic101

31-08-2016

2/3(120) = 240/3 = 80 do not drink
4/5(120) = 480/5 = 96 do not smoke
72 do not smoke or drink

96 - 72 = 24 do not smoke
80 - 72 = 8 do not drink
72 do not do either

120 - (24 + 8 + 72) = 120 - 104 = 16 drink and smoke

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