Jumper\textquotesingle s weight is Mom Kangaroo and Jumper\textquotesingle s weight minus the mom\textquotesingle s weight. 
Together, Mom Kangaroo and her son Jumper weigh $60$ kilograms. Mom Kangaroo alone weighs $52$ kilograms. How much does Jumper weigh? ($$2019$$ Math kangaroo Problems, Level $$1-2$$, Question \#$$3$$) 
* 2 kilograms 
* 4 kilograms 
* 8 kilograms 
* 30 kilograms 
* 46 kilograms 