What is the age and value of a Winchester 25-20 Model 1892?
Age can be determined by comparing the serial number against published charts. Value depends on condition, originality, and any special order features. Could range from $300 to several thousand dollars. email@example.com
Your question does not make sense. The Model 1894 and Model 1892 are two distinctly different rifles. Since the 1894 was never chambered in .25/20, we have to assume you have a Model 1892. That caliber was not introduced until the year 1895, so we have to wonder where the '1894' in your question comes from. As to value, it is impossible to answer your question without a LOT more information. Condition is everything with…
25-20 is a caliber, not a model number. If the gun is a lever action, it's probably a model 1892, which were made up until WW2. In that caliber, it's probably from the early 1900's. If you go to: http://armscollectors.com/sn/windates.htm select the proper model number and enter the serial number, it will give you the date the gun was made.
What is the volume of a cuboid when its height is in the ratio of 12 to 5 to its width and has a length of 30 cm with a surface area of 2520 square cm showing all work?
1 Let its height be 12x and its width be 5x 2 If: (2*12x*5x)+(2*12x*30)+(2*30) = 2520 sq cm 3 Then: 120x2+720x+300x = 2520 4 And so: 120x2+1020x = 2520 => 120x2+1020x-2520 = 0 5 Solving the above quadratic equation gives x a positive value of 2 6 Therefore: height is 12*2 = 24 cm and width is 5*2 = 10 cm 7 Volume: 24*10*30 = 7200 cubic cm 8 Check: (2*24*10)+(2*24*30)+(2*10*30) = 2520 square cm