20 x 18 x 5= 1,800
20 times 18 equals 360, then you mutiply 5 and get 1,800
The volume of a cone is

where r = radius and h = height. If the cone has a volume of 94.2 cm³ (I assume you didn't mean m³ because that would be ridiculously huge) and a height of 10 cm, we can plug these values into the formula to find the radius. Don't do any rounding.

Now we know that's going to be the radius of our <em>new </em>cone as well since we're keeping the diameter the same. The volume is going to be double 94.2 which is 188.4. Let's solve for the height.
Answer:
10 hours
Step-by-step explanation:
If you were to subtract 175 by 95 then you would get 80, then you would divide 80 by 8 then you would get 10.