04/10/2021
Helen and Ivan had the same number of coins. Helen had a number of 50-cent coins and 64 20-cent coins. Helen's coins had a total mass of 1.134kg. Ivan had a number of 50-cent coins and 104 20-cent coins.
They decided to spend some of their coins to buy marshmallows so they carry less heavy coins and still walk away happy eating marshmallows.
The End