Answer:
The correct answer is. A. 350th guest will receive both prizes. B. 10 people will receive a plasma ball.
Step-by-step explanation:
A magnetic liquid kit prize every 50 guests and a plasma ball every 35 guests
Who will receive the magnetic liquid kit prize?:
- Guest 50th
- Guest 100th
- Guest 150th
- Guest 200th
- Guest 250th
- Guest 300th
- Guest 350th
- Guest 400th and so on, in case no coincidence would happen.
Who will receive the plasma ball?
- Guest 35th
- Guest 70th
- Guest 105th
- Guest 140th
- Guest 175
- Guest 210th
- Guest 245th
- Guest 280
- Guest 315th
- Guest 350th.
As you can see, Guest 350th will be the first one to receive both prizes and including him or her, a total of ten guests will receive the plasma ball until that moment. There wasn't any coincidence before Guest 350th.
