Answer:
search it up i got this
Step-by-step explanation:
Answer To The World's Toughest Riddle
In the original problem with s1 = 20, s1 = 15, s1 = 9, and s1 = 6, it just works out the sum of the balance column is 51. You might think it's easy, but you'd be amazed how this problem confuses many people!