CBSE Class 10 Answered
quadratic equaations
Asked by newlearner1 | 27 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)
hence
x(x-1)=132
(x*x)-x-132=0
solving the quadratic we get,
(x-12)(x+11)=0
so x=12
Answered by | 27 Jul, 2009, 01:39: PM
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