try to do this mentally as fast as possible...
A borrows $100 from B
B borrows $200 from C
C borrows $300 from D
D borrows $400 from A
How should they settle their debts with the least amount of money changing hands?
- adapted from mediacorp 933 afternoon programme
Solve within 5 mins ---> NOT BAD!
Solve within 3 mins ---> GOOD!
Solve within 1 min ---> EXCELLENT!
Solve within 30 sec ---> dun bluff~
Solve within 10 sec ---> you cheater!
Solve within 5 sec ---> you heard this before...
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