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A finance company has offices located in ewery division,
every didtrict and every taluka in a certain state in India.
Assume that there are five divisions, thirty districts and
200 talukas in the state. Each office has one head clerk,
one cashier, one clerk and one peon. A divisional office
has, in addition, one office superntendent, two clerks,
one typist and one poen. A district office, has in
addition, one clerk and one peon. The basic monthly
salaries are as follows :
Office superintendernt Rs 500, Head clerk Rs 200, cashier Rs 175, clerks and typist
Rs 150 and peon Rs 100. Using matrix motation find
the total unmber of posts of each kind in all the offices
taken together,
A.
B.
C.
D.

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1 Answers

Correct Answer - Number of posts in all the offices taken together are 5 office
superintendents; 235 had clerks; 235 cashiers; 275 clerks; 5 typisit and 270
Lets us use the symbols Div, Dis, Tal for division, district,
taluka respectively and O, H, C, Cl , T and P for office
superintendent, Head clerk, Cashier, Clerk, Typist and Peon
respectively.
Then the number of offices can be arranged as elements of a
row matrix A and the composition of staffin various offices
can be areanged in a `3xx6` matrix B (say).
`{:(Div, Dis, Tal):}`
`therefore A = [[5,30,200]]`
and `B=[[1,1,1,2+1,1,1+1],[0,1,1,1+1,0,1+1],[0,1,1,1,0,1]]`
or `B= [[1,1,1,3,1,2],[0,1,1,2,0,2],[0,1,1,1,0,1]]`
The basic monthly salarise of various types of employees of
these offies correspond to the elements of the column matrix
C.
`thereforeC={:[O],[H],[C],[Cl],[T],[P]:}[[500],[200],[175],[150],[150],[100]]`

Total number of Posts = AB
`{:(O,H,C,Cl,T,P):}`
`{:(,"Div","Dis","Tal"),("[",5,30,200" ]"):}xx =[{:(,1,1,1,3,1,2),(,0,1,1,2,0,2),(,0,1,1,1,0,1):}]`
`{:( ,O,H,C,Cl,T,P),(=,"["5,235,235,275,5,270"]"):}`
i.e. Required number of posta in all the offices taken
together are 5 office Suprintendents, 235 Head Clareks,
235 Cashiers, 275 Clerks, 5 Typists and 270 Peons.

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