It is 70% Because:
250/100 + 175/x
Proportions
Answer:

Step-by-step explanation:
For this problem, the fraction is out of 7 so all the values less than 7 is 1-6. So the probability is going to be 
Hope this helps.
To figure this problem out, we need to divide 2/3 by 3/4.
2/3 / 3/4 = 8/9 or 0.888888 repeating.
Therefore, there are 8/9 of the 3/4 cup servings in 2/3 cup of yogurt.
No of people not from their neighborhood=25-20=5
total contact s=25
therefore probability to call a person not from his neighborhood=5/25=1/5
therefore P=1/5