Answer :

60% of number = 24

60% is given by multiplying by 0.6

number x 0.6 = 24

number = 24 / 0.6

number = 40

[tex]Other\ method:\\\\\begin{array}{ccc}24&-&60\%\\x&-&100\%\end{array}\ \ \ |cross\ multiply\\\\60x=24\cdot100\\60x=2400\ \ \ \ |divdie\ both\ sides\ by\ 60\\\boxed{x=40}\leftarrow ANSWER[/tex]