1870
THE HONGKONG GOVERNMENT GAZETTE, OCT. 26, 1906.
F.-CALCULATION OF QUANTITIES (OR
TABULAR RESULTS) FOR AGES NOT GIVEN IN THE TABLES.
TABLE A. The quantities are given for every age of the husband from 15 to 64; and for every fifth age of the wife from 15 to 65. Ages of husbands and wives below or beyond are to be treated as the youngest and oldest ages given respectively. For the intermediate ages of wives, interpolate by first differences, as follows:-
To find the quantity corresponding to the ages of a husband and wife aged respectively 35 and 27 next birth- day.
The quantity for ages
Table is
35 and 25 given in the
310
The quantity for ages 35 and 30 given in the
Table is
.332
So that the addition of five years to the age of the wife results in an addition of .022 to the quantity given in the Table for ages 35 and 25.
An addition of two years to the age of the wife accord- ingly results by proportion in au addition of two-fifths of .022 to the quantity given in the Table for ages 35 and
25.
Two-fifths of .022.009, which added to 310 gives .319, which is the required quantity corresponding to ages
35 and 27.
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TABLE B.-This Table is divided into eleven sections respectively applicable to Officer who will be aged next birthday 55, 56, 57
up to 65, when they complete their period of contribution. Care should in all cases be taken to turn to the section which contains in the heading the age of the hus- band at the date of completion of his period of contribution.
In each section the quantities are given for 35 consecu- tive ages of the husband, terminating at the age preceding that at which the contribution ceases, and for every fifth age of the wife from 15 to 65.
Ages of the wife below or beyond are to be treated as the youngest and oldest ages given respectively. For the intermediate ages of wives interpolate by first differences as explained above. Thus the quantity found from the first section of the Table (age 55) corresponding to the ages of a husband and wife agod respectively 45 and 38 next birthday is three-fifths of 17, added to 1.78, which gives 1.88.
For Officers who commence to contribute at an earlier age than 20 next birthday the method of calculation given in the subjoined examples is to be followed:- EXAMPLE (1),—An officer aged 17 next birthday, having a wife aged 16 next birthday, commences to contribute. Assume that the Officer is aged 20 next birthday, so that the quantity found from Table B will be 6.05.
This Officer receives an increment of salary at age 22 next birthday, when his wife's age is 20. Assume that his age is 25 next birthday, i.e., his actual age 22, plus the difference between his actual age at entry and 20, which is three years.
The quantity found from Table B will be 5.16. EXAMPLE (2).---An Officer aged 19 next birthday com- mences to contribute as a bachelor, and five years later, when aged 24 next birthday, marries; his wife's age being 20 next birthday. The quantity found from Table A in accordance with Rule I. (a) will be taken for the actual ages (husband 24 and wife 20) and will be .422. With respect to the current annual contribution at marriage, assume that the Officer's age is 25 (his actual age plus one) so that the quantity found from Table B will be 3.16.
This Officer receives an increment of salary when aged 39, when his wife's age is 385. Assume as before that the ages are 40 and 35 respectively, so that the quantity found from Table B will be 2.72.
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