算数:14*9*2=252立方厘米,
圆柱体占1-1/6=5/6
圆体占1/3=2/6
252/(5+2)=36
圆柱体的体积是36*6=216立方厘米
圆锥体的体积是36*2=72立方厘米.
答:圆锥的体积为72cm³,圆柱的体积为216cm³.
方程:设圆锥的体积为xcm³,则圆柱的体积为3xcm³.依据题意
x +( 1 - 1/6 )× 3x = 14 × 9 × 2
即 x + ( 1 - 1/6 ) × 3x = 252
x + 5/6 × 3x = 252
x + 5x/2 = 252
7x/2 = 252
x = 72
则 3x =3 × 72 = 216
答:圆锥的体积为72cm³,圆柱的体积为216cm³.