+0  
 
0
103
1
avatar+38 

Mario wants to give out an equal number of blue shells to each friend. If he gives 10 blue shells to each friend, he will be short of 30 blue shells. If he gives 8 blue shells to each friend, he will be short of 6 blue shells. How many friends did he have?

 Apr 23, 2022
 #1
avatar+117872 
0

 

If the number of friends is  F

and the number of shells is H

 

then 10F-30 = H

and    8F-6 = H   

 

Now solve simultaneously.                                                                                                                                            

 Apr 24, 2022

26 Online Users