Question 1205576
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A 20.80 gift box of candy contains 2 varieties. 
One type costs 1.60/kg and the other costs $1.80/kg. 
The number of kg at 1.80 is twice the number of kg at $1.60. 
Find the number of kg of each type of candy.
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<pre>
x   kilograms at $1.60 per kilo.

2x  kilograms at $1.80 per kilo.


Total money equation

    1.60*x + 1.80*(2x) = 20.80  dollars.


Simplify and find x

    1.60x + 3.60x = 20.80

        5.20x     = 20.80

            x     = 20.80/5.20 = 4.


<U>ANSWER</U>.  4 kilograms candy at $1.60  and 2*4 = 8 kilograms candy at $1.80.
</pre>

Solved.


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The solution of the other person has arithmetic &nbsp;ERRORS &nbsp;and, &nbsp;THEREFORE, &nbsp;is &nbsp;INCORRECT.