Let's call Amelia's original number "x".
From the problem, we know that when x is divided by 4, the result has 1 decimal place and is between 7 and 8. This can be written as:
7 < x/4 < 8
We can solve for x by multiplying all sides of the inequality by 4:
28 < x < 32
So Amelia's original number could be any whole number between 28 and 32, inclusive.
Amelia thinks of a whole number.
When she divides her number by 4, the result has 1 decimal place and is greater than 7 but less than 8.
What is Amelia's original number?
1 answer