Answer:
0.03505
Explanation:
The total number of gumballs = 350 + 400 + 550 = 1300
The probability of getting 1 grape ball = 350/1300
= 7/26
The probability of getting 1 cherry ball = 400/1300
= 4/13
The probability of getting 1 lemon ball = 550/1300
= 11/26
Therefore, the required probability :
= (7/26) × (4/13) × ( 11/26)
= 0.03505