Answer:
0.3043478
Step-by-step explanation:
...............
You can divide the total number of outcomes.
Answer:
960
Step-by-step explanation:
You have to figure out what 1/4th of 640 is, which is 160.
It says that number is 1/6th of boys, so you multiply by the inverse.
160x6 = 960
The answer to that question is 3/7