48:(160^2)=

To solve the expression \( 48:(160^2) \), we need to calculate \( 160^2 \) first.

\( 160^2 = 160 \times 160 = 25600 \).

Now, we can write the expression as:

\[ 48 : 25600 \]

This is equivalent to:

\[ \frac{48}{25600} \]

Now we can simplify this fraction:

\[ \frac{48}{25600} = \frac{48 \div 16}{25600 \div 16} = \frac{3}{1600} \]

Therefore, the result of the expression \( 48:(160^2) \) is:

\[ \frac{3}{1600} \]