ACTUAL AND PROBABLE LIFE 
TABLE 5. REPLACEMENT REQUIREMENTS 
NUMEROUS ARTICLES. PROBABLE LIFE 10 YEARS 
Each article is replaced as it goes out of use. For an original investment 
of $100 with no betterments or additions. Also for an investment growing 
at the uniform rate of $100 per year. 
(For the special hypothesis as stated in the text.) 
Plant of full growth, 
original investment Growing plant, annual investment $100. 
Near. $100. 
Replacements per year. Replacements per year.’ Repiacsments per $10 
$ 1.00 $ 1.00 $1.00 
2.01 3.01 1.51 
3.04 6.03 2.02 
4.10 10.15 2.54 
5.20 15.33 3.07 
6.36 21.71 3.62 
7.5% 29.28 4.18 
8.87 38.13 4.77 
10.25 48.39 5.38 
1. 11.73 60.12 6.01 
14 11.33 71.46 3.50 
11.03 82.48 6.87 
: 10.79 93.27 7.18 
rT. 10.60 103.88 7.42 
i 10.46 114.34 7.63 
1 10.28 124.61 +.80 
i 10.09 134.70 -.93 
! 9.85 144.55 1.08 
1 9.53 154.08 5.12 
Zo 9.10 163.18 4.16 
21 9.53 172.72 +23 
$ 9.84 182.56 .30 
: 10.05 192.60 1.37 
z 10.17 202.77 .45 
i 10.22 212.99 32 
2 10.22 223.21 “iy 
7 10.17 233.38 .64 
2. 10.11 243.49 «.69 
2g 10.03 253.52 3.74 
3u 9.97 263.49 8.78 
or 9.99 313.31 8.95 
40 10.01 363.40 9.09 
4; 10.00 413.40 9.19 
52 10.00 463.40 9.27 
113