\[\boxed{\ \mathbf{637\ (637)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ V = \text{abc}\]
\[V_{н} = 2a \cdot 2b \cdot 2c = 8\ abc.\]
\[V_{н}\ :V = 8\ abc\ :abc = 8\ (раз) -\]
\[увеличится.\]
\[2)\ V = abc\]
\[V_{н} = (a\ :3) \cdot (b\ :5) \cdot 15c =\]
\[= (15\ :15)abc = abc.\]
\[V_{н}\ :V = abc\ :abc = 1\ (раз) -\]
\[не\ изменится.\]
\[Ответ:1)\ увеличится\ в\ 8\ раз;\ \]
\[\ \ \ \ \ \ \ \ \ \ \ \ \ \ 2)\ не\ изменится.\]
\[\boxed{\mathbf{637}.\ }\]
\[Число\] | \[24\] | \[53\] | \[60\] | \[78\] | \[79\] | \[96\] | \[142\] | \[241\] | \[495\] | \[7207\] |
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\[Четное\ число\] | \[+\] | \[-\] | \[+\] | \[+\] | \[-\] | \[+\] | \[+\] | \[-\] | \[-\] | \[-\] |