ken spends 1/5 of his money on a dictionary. he gives $21 to his brother and has 1/2 of his money left. how much money does ken have left?
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let the total money be x
spent on dictionary=x/5
left with him x/2
Given to brother x-x/2-x/5=21
⇒ 3x/10=21
⇒ x=70
Money left with him=70/2=35$
spent on dictionary=x/5
left with him x/2
Given to brother x-x/2-x/5=21
⇒ 3x/10=21
⇒ x=70
Money left with him=70/2=35$
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