Mario and sheen a were thirsty after a long bike ride, so they stopped to get a glass of lemonade. Their friend Andy was selling lemonade. He poured the lemonade into the two glasse. Before they start drinking sheena who had the shorter glass complained that she had paid the same amount of money as Mario but didn't get as much lemonade. Andy insisted that they had the same amount.
How Andy could prove his two customers got the same amount of lemonade
use a third container.
Pour lemonade from one glass into it and mark its height.
Then do the same with the other glass.
If the height is the same, the glasses contain the same volume of drink.
To prove that Mario and Sheena got the same amount of lemonade, Andy could follow these steps:
1. Ask Mario and Sheena to pour the lemonade from their glasses into identical measuring cups.
2. Compare the measurements in both cups to see if they are equal. If the measurements are the same, it confirms that both customers received the same amount of lemonade. If the measurements are slightly off due to pouring errors, Andy can ask them to pour again more carefully to ensure accuracy.
3. If the measurements are not the same, Andy can explain that he might have made a mistake while pouring and apologize. He can then offer to either refill Sheena's glass to make it equivalent to Mario's or provide a partial refund.
By comparing the actual measured amounts, Andy can ensure fairness and demonstrate to Sheena that she received the same amount of lemonade as Mario.