The average age of 30 boys in a class is 16 years The average of the ages of the boys and the teacher is 17 years The age of teacher is? avg of 30 is 16=30*16=480 avg of 30 and 1 teacher is 17=31*17=527 Save then age of teacher is 527-480=47... 2012mm is the average rainfall of mumbai for last 13 years.
Types of Lumber: Softwood and Hardwood. There are two types of lumber: softwoods and hardwoods. Softwood lumber comes from conifer trees like pine, fir, spruce, and cedar. These woods get their classification for a reason; they can be easily dented with just your fingernail.
what is softwood softwood refers to lumber that has been cut from a coniferous or an evergreen tree softwoods are frequently used as building materials softwoods come from evergreen and conifer trees such as pine cedar or spruce the other class of wood is hardwood which comes from angiosperms such as walnut hickory or maple softwood lumber is used for many woodworking projects because it is usually strong and easy to work with