Several cartons of candy are being shipped from a manufacturer to warehouses where they will be repackaged to sell to stores. The candy in each carton needs to be divided equally among 3, 4, 5, or 7 stores.
What is the least number of pieces of candy that each carton can have
Many years ago when gasoline was only 46 cents a gallon, I stopped to fill up my truck. I gave the attendant a $20.00 bill and waited for my change.
Unexpectedly, he charged me for the number of gallons that the truck needed instead of the dollar amount.
(for example if the truck took 8.4 gallons he would have charged me $8.40. Because he did this, I received less in change than I should have.
The funny thing is that I had received in change exactly the amount that I should have been charged for the gas in the first place.
Remembering that the cash indicator on a gas pump will only charge to the nearest half-cent, how many gallons of gas did I buy that day