Consecutive means right after each other like 1, 2, 3, 4...so if the first sister is x old, then sister 2 is (x+1) old and sister 3 is (x+2) old. So make an equation that says x+(x+1)+(x+2)=45. Simplify and solve for x (get x alone.)
Answer:
The answer is 0.31
Step-by-step explanation:
We can solve this problem as a binomial distribution function. Probability of selecting business mayors is p=0.4 and selecting non-business mayors is q=0.6.
Then selecting 2 busies mayors out of six is:

Hope it’s right
Best luck with your studying
Correct answer: 30 miles in total