For example: Start with 10 rupees
Bet 10 rupees---If you lose, buy 30 rupees
Bet 30 rupees---If you lose, buy 90 rupees
Bet 90 rupees---If you lose, buy 270 rupees
Bet 270 rupees---If you lose, buy 810 rupees
If you win, you can earn 810-270--90-30-10=410
Using the triple investment method, no matter how many mistakes you make, as long as the last trade is correct, you can quickly recover all your losses and get rich returns!