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Math in the sixth grade is always a review.
1. Because it is allocated to grades 4, 5 and 6 according to 2: 3: 4, that is, it is divided into 9 parts. Because grade 6 scored 1 copy more than grade 5, that is, 14, so there are 9 * * * 14 copies.

2. Because the volume of the cone is 1/3Sh, the height of the cone is 24cm and the volume is 80cm3, the bottom area is 10, because it is 40cm3 smaller than the cylinder with the same bottom, that is, the cylinder volume is 120, and because the cylinder volume is Sh, the cylinder height is120.

3. Because the cone is completely submerged, the volume of rising water is the volume of the cone, which can be divided by the square of 1.5*(20).

4. The volume of water in the water tank is the volume of the conical container, which can be calculated by the formula 1/3Sh and divided by the bottom area of 8.