xxwinglessangel xxwinglessangel

18-01-2017
Mathematics

contestada

The mean age of 10 people in a room was 16. When Toby walked into the room, the mean age went up to 18.

What is Toby's age?

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catwithavacum catwithavacum

18-01-2017

he was 17. If there are 10 people and the mean is 16 and one person walks on in and it turns to 18 then that must mean he would have passed the mean of two people so I would say hes 17 .

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