Subversion Repositories wimsdev

type=first

textarea="explain"

random="x y"

computed="ans"

:A numerical exercise with two random parameters.

The numeric reply is computed with respect to random values of two parameters,

according to various formulas.

<p>

Author of the model: Gang Xiao <qualite@wimsedu.info>

:%%%%%%%%%%%%%%%%%      ATTENTION      %%%%%%%%%%%%%%%%%%%%

Remove the above header if you destroy the model tags i.e. the lines starting

with a ':'. Otherwise the exercise might not be recognised by Createxo.

:%%%%%%%% Example parameters to be redefined %%%%%%%%%%%%%%%%%

:\title{Two parameters}

:\author{XIAO, Gang}

:\email{qualite@wimsedu.info}

:\credits{}

:First parameter \x.

\real{x=randint(5..20)*20}

:Second parameter \y.

\real{y=randitem(20,25,30,35,40,60)}

:The computed right answer.

All common functions are recognized. We use \x and \y to

designate the random parameters defined above.

\real{ans=\x*(100-\y)/100}

:Text that explains what should be done.

$embraced_randitem

\text{explain=

A fashion article in a clothes shop costs \x dollars. During a

sales period, the shop offers a reduction of \y percent on the article.

What is the reduced price (in dollars)?

}

:%% Computations; do not modify

\text{explain=wims(embraced randitem \explain)}

:%%%%%%%%%%%%% Now the statement in html. %%%%%%%%%%%%%%%%%%%%

::You don't need to modify this in general.

\statement{\explain

}

:%%%%%%%%%%%%% Nothing to modify after. %%%%%%%%%%%%%%%%%5

\answer{My reply}{\ans}{type=number}