b. River

I new 2 probability chapter. Correct my mistake

]]>Y = -98/9

Z = 173/9

Steps in pic below

]]>Therefore, 6 = 3

And not 30

x = 30

]]>4 x 3 = 12

5 x 4 = 20

So, 6 x 5 = 30

Answer is 30

]]>I have attached the solution below.

Let me know if you need further clarification. ]]>