The sequence you add 6 each time so I say 6
Let
be the short, medium and long side, respectively. If we translate all the information into formulas, we get the following system:

Using the second equation, we can express the middle side in terms of the small one, and reduce the system to two equations in two unknowns:

And thus

But then again, using the first equation, the third becomes

So, the longest side is 12. Since the small is half the long, we have
. Finally, the medium is three more of the small, so we have 
(3,5) is the answer ( is the difference between them )
Answer:
0.35
Step-by-step explanation:
we know that
The formula to use for uniform distribution is equal to

where,
b is the upper limit of the distribution which is 5 minutes in this case.
a is the lower limit of the distribution which is 0 minutes in this case.
x is the concerned value which is 1.75 minutes in this case.
substitute the given values

That means
The probability that a randomly selected passenger has a waiting time less than 1.75 minutes is 0.35
Step-by-step explanation:
In,
Question 2 I have already answered,
Q. 3)
<h3>
<em><u>Given</u></em><em><u> </u></em><em><u>Question</u></em><em><u>:</u></em></h3>

<em><u>Given</u></em><em><u> </u></em><em><u>values</u></em><em><u>:</u></em><em><u>-</u></em>
c = 6 , d = 3
<em><u>By</u></em><em><u> </u></em><em><u>putting</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>values</u></em><em><u> </u></em><em><u>in</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>question</u></em><em><u>, </u></em>


= <em><u>12 (Ans)</u></em>