An ice-cream truck visits Julio's street every 3 days and Lara's street every 4 days. The truck visits both streets on April 12. When will the truck visit both steets again? 
There is a 30 day calendar. 



Answer :

I think the ice-cream truck will visit both streetson 24th of April. Why?
The truck will visit Julio on 15th, 18th, 21st and 24th of April
                           Lara on 16th, 20th and 24th of April