英语翻译Three solid cubes of lead,each with edges 10 centimeters

英语翻译
Three solid cubes of lead,each with edges 10 centimeters,are melted together in a level,rectangular-shaped pan.The base of the pan has inside dimensions of 20 centimeters by 30 centimeters,and the pan is 15centimeters deep.If the volume of the solid lead is approximately the same as the volume of the melted lead,approximately how many centimeters deep is the melted lead in the pan?