We need the question to help
and 
There are 6 possible outcomes when rolling a die, 1, 2, 3, 4 , 5, 6
A
numbers less than 4 are 1, 2, 3
P( number less than 4 ) =
= 
B
numbers greater than 4 are 5, 6
P( number greater than 4 ) =
= 
4 + -1 = 3
Or -1 - 4 = -5
I would put 3.
What to do?????????.......
One laptop costs 32,750.
He bought 5 laptops.
So, 5 x 32,750 = 163,750.
Let d = cost of one desktop.
163,750 + d = 229,600.
Solve for d to find your answer.