Question 4864
THE COMBINED POPULATION OF BOTH THE CITIES IS GIVEN FOR YEAR 1995.
LET US ASSUME THAT THE POPULATION OF CITY ANCHORAGE IS   x 
THEN THE POPULATION OF CITY TAMPA  BECOMES               25000-x

POPULATION INCREASE IN ANCHORAGE BY 1960 
   
   10% of x   

POPULATION INCREASE IN TAMPA BY 1960 
   
   9% of (25000 - x)

TOTAL POPULATION INCREASE  IS GIVEN BY

10x/100 + 9*(25000-x)/100 = 2380
(10x + 9*25000 - 9x)/100 = 2380
10x - 9x + 225000 = 2380*100
   x + 225000 = 238000
    x      = 238000 - 225000
    x  = 13000

SO population of ANCHORAGE IN 1995 WAS 13000
AND population of TAMPA IN 1995 WAS 25000 - 13000 = 12000

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