Answer:
17/25
Step-by-step explanation:
The probability of drawing 1 = 2/5
The probability of drawing 5 = 1/5
The probability of drawing 9 = 2/5
Since the sum of the two ticket is greater than or equal to 10,
If I draw 1 first, I can only only select 9 also= 2/5* 2/5
= 4/25
If I draw 5, I can draw another 5 or 9 later = 1/5 * (1/5+2/5)
= 1/5 * 3/5
= 3/25
If I draw 9 then I can draw anything
2/5 * 5/5
= 10/25
The sum of all the products = 4/25 + 3/25 + 10/25
= 17/25
