Adding results of two functions JQuery -

I have a problem by returning the values ​​of two functions and adding them together, I have to add the fruit number to the kernel

HTML

  & lt; Select class = "fruit" & gt; & Lt; Option value = "1" & gt; Apple & lt; / Option & gt; & Lt; Option value = "2" & gt; Orange & lt; / Options & gt; & Lt; Option value = "3" & gt; Pineapple & lt; / Options & gt; & Lt; Option value = "4" & gt; Banana & lt; / Options & gt; & Lt; / Select & gt; & Lt; Select class = "car" & gt; & Lt; Option value = "1" & gt; Volvo & lt; / Options & gt; & Lt; Option value = "2" & gt; Saab & lt; / Options & gt; & Lt; Option value = "3" & gt; Mercedes & lt; / Options & gt; & Lt; Option value = "4" & gt; Audi & lt; / Options & gt; & Lt; / Select & gt;  

JQuery

  $ (function () {$ ('.food'). Change (function () {fruitNum = $ (this) .val ();}); $ ('Car'). Change (function () {carNum = $ (this) .val ();}); adding both values ​​of the fruit and nano}}}  < / P> 
   
 If you want a dynamic update of prices, you can create a "callback" function which changes each time to select. By using the javascript parseInt function you can create a Can convert the selected value into an integer and a mathematical value .  
  $ (function () {$ ('.fruit'). Change (function () {function name = $ (this) .val (); clique (); Change (function.) {CarNum = $ (this) .val (); clack ();}); // Callback function that adds to the function () {results = PurseInt ($ ('.car'). Val ()) + parseInt ($ ('.food') .val ()); console.log result);}});  
 
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