කප් රුක ඇදෙන සම්භාවිතාව
Game rules (as you described)
Numbers:
Balls numbered 1–99
4 numbers are drawn randomly (order doesn’t matter)
Letter:
One letter chosen from A–Z (26 letters)
Super number:
One ball chosen from 1–40
Step 1: Number combinations (1–99, choose 4)
Total possible combinations:
So only 1 correct combination out of 3,764,376.
Step 2: Letter probability (A–Z)
Step 3: Super number probability (1–40)
Step 4: Total probability to win
Multiply all probabilities:

Final Answer
Probability to win = 1 in 3,914,951,040
Plain English

You have about 1 chance in 3.9 billion to win this game.