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Answer»

Solution

Let the populations of villages X,A,B,C,D,E,F be x,a,b,c,d,e,f respectively

Given that

a = 0.25x

b=0.2x

c=0.4x

d=0.6*0.4x=0.24x

e=0.85*0.2x=0.17x

f=0.35x=21000

Hece x = 60000

The DIFFERENCE between the POPULATION of village C and village D = c-d

=0.4x-0.24x =0.16x= $0.16 \TIMES 60000$ = 9600




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