quadratic equaations

Asked by newlearner1 | 27th Jul, 2009, 06:20: AM

Expert Answer:

let the no. of children be x.

 so each child has to give x-1 gifts.

 so total no. of gifts=x(x-1)




solving the quadratic we get,


so x=12

Answered by  | 27th Jul, 2009, 01:39: PM

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