Answer:
20 days
Explanation:
So:
15 scouts=24 days
18 scouts=x days
15*1.2=18 (for the first equation of scouts to scouts)
Since this is a time problem, it should be inversely proportional- which also means that instead of multiplying for the second one as well, it should divide.
24/1.2=20
Let’s look at the ratio again:
15/24
18/20
In an inversely proportional answer, the product should be the same.
15*24=360
18*20=360
Therefore, the answer is correct.
[Also, if you were confused about the first answer, I think you got it wrong because you thought it was directly proportional, not inversely proportional. In time problems, it is inversely proportional because of the time span. Think of it: if 2 people eat 5 cookies in 2 minutes, then 4 people don’t eat 5 cookies in 4 minutes! Instead, the minutes shrinks because there are more people.]