El blog de Alberto
martes, 2 de noviembre de 2010
BARE FEET
There are 12 people in a room. 6 people are wearing socks and 4 people are wearing shoes.3 people are wearing both. How many people are in bare feet?
1 comentario:
Alberto
2 de noviembre de 2010 a las 12:26
Need a hint:
Don´t count twice people who wear both.
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Need a hint:
ResponderEliminarDon´t count twice people who wear both.