void wrote:
WHY option f is correct?
Hi there!
I hope you were able to find the range in which the two family lies.
Family A- Lies in the range of 18000-20940
Family B lies in the range of 17000-20825
Now, the highest difference could be 20940-17000=3940
The lowest difference being 0, why? Because it is possible that Family B could be 18000 or 18100 or 19999 or anything in the range between 18000-20940
Similarly, B can also be in this range. Thus the two values can be equal and the difference can be 0 as well
Thus, values between 0-3940 are the correct answers.
IMO D, E, F.
Ask for further assistance.
Hope this helps!