Number of brown trout = 6
Number of lake trout = 18
Total number of trouts = 
Probability to catch a lake trout first time = 
As the fisherman let the trout go, so probability for the second time is =

Hence, the probability becomes=

= 
The probability to find the brown trout is 
as , 
= 
Answer:
99/4 = 24 3/4
Step-by-step explanation:
25 1/2 = (25 x 2 + 1)/2 = 51/2 = 102/4
102/4 - 3/4 = 99/4 = 24 3/4
Step-by-step explanation:


on applying ,
(a+b)²=a²+2ab+b²
So, c = 25 or (5)²
Triangle WYZ and triangle TWY are congruent, therefore WZ = TW
WZ = TW
3x - 5 = 2x
3x - 2x = 5
x = 5
The value of x is 5