Answer:
1/20 or 5%
Step-by-step explanation:
There are 10 possible outcomes, of which 5 are even. The chance of it being even is 1/2 or 50%. 1 of the 10 outcomes is a 7. The chance of it being a 7 is 1/10 or 10%. You then do 10% x 50% which results in 5%.