Answer: The number is 40.
Step-by-step explanation:
Since we have given that
Let the number be 'x'.
If a number is decreased by 40%.
So, number becomes,
[tex]\dfrac{100-40}{100}\times x\\\\=\dfrac{60}{100}\times x\\\\=0.6x[/tex]
According to question, the result becomes 24.
So, our equation becomes,
[tex]0.6x=24\\\\x=\dfrac{24}{0.6}\\\\x=\dfrac{240}{6}\\\\x=40[/tex]
Hence, the number is 40.