Answer:
(B)
Step-by-step explanation:
First, we determine the height of the triangle which we label as y.
Using Pythagoras Theorem.

In the smaller right triangle with hypotenuse, x
Base = 7-3 =4 Units
Height, y= 24 Units
Therefore, applying Pythagoras Theorem.:

Answer:
1,2,3,4,5,6
odd numbers:
1,3,5
even numbers:
2,4,6
I would say its a 50/50 chance