NEVER LOOSE MONEY AT SOCIETY FUN FAIRS (THEY ARE EVIL I LOST 600 BUKS ONCE AND CHALKED OUT THIS STRATEGY)

First pick up a game wherein your winning probablity is 50% or almost 50%. Like 7up 7down or Roulette (odd and even or black and red). The probability of exact 7 and 0 in roulette is very less. (Neglect)

Let's assume that you have ₹1000 at a fun fair in your society.

Go to 7up 7down counter. Select an event, let's say 7up here. Place your bet worth base price (₹10 here). Every time you loose double the bet, every time you win start from base price again (₹10). For example.

Trial 1: place ₹10

Result = 7 down ( you loose)

Trial 2: Place ₹20

Result = 7 down (you loose)

Trial 3: place ₹40

Result= 7 down (you loose)

Basically the game has nearly 50% possibility. But let's assume that the you are bad luck ka badshah. Yet you will win at least once by the 4–5 trial.

Trial 4: place ₹80 .

Result: 7up (you win)

You get ₹ 160 (base 80 + 80win)

So your loss= 10 +20 +40 +80= 150

Your win= ₹160!

Profit = ₹ 10

Impossible to loose money.

Sorry, but this was important. Those small notorious kids are pure evil. They loot you till the last dime. It's time to hit back ;)