The solution of this question will make use of the Two Tangents from Point Theorem which states that "the measure of an angle formed by two tangents drawn from a point outside the circle is half the the difference of the intercepted arcs".
We can also see that the measure of arcs are: 
and
Thus, as per the theorem, the measure of the 
can be calculated as:
Therefore, we get:
Thus, out of the given options, option B is the correct option.
1) first pick red 5/9 blue 4/9
2) second pick when red has been picked red now becomes 4/8, blue stays 4/8
2) Second pick when blue has been picked blue now becomes 3/8, red stays 5/8
Mind you, you only need both different colours so:
first pick red 5/9 x sec pick blue 4/8 = 20/72
and first pick blue 4/9 x sec pick red 5/8 = 20/72
add both up 20/72 + 20/72 = 40/72 = 5/9
Well Hello!
I believe the answer to your question would be -8 1/4
N=64.
32+64=100
64/8=8
sqrt (64+225)= sqrt (289) = positive and negative 17
