1. The strength of school incresed/decreased from 1997 to 1998 by approximately what percent?





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  • By: guest on 01 Jun 2017 11.13 pm
    Important data noted from the given graph: In 1996 : Number of students left = 250 and number of students joined = 350. In 1997 : Number of students left = 450 and number of students joined = 300. In 1998 : Number of students left = 400 and number of students joined = 450. In 1999 : Number of students left = 350 and number of students joined = 500. In 2000 : Number of students left = 450 and number of students joined = 400. In 2001 : Number of students left = 450 and number of students joined = 550. Therefore, the numbers of students studying in the school (i.e., strength of the school) in various years: In 1995 = 3000 (given). In 1996 = 3000 - 250 + 350 = 3100. In 1997 = 3100 - 450 + 300 = 2950. In 1998 = 2950 - 400 + 450 = 3000. In 1999 = 3000 - 350 + 500 = 3150. In 2000 = 3150 - 450 + 400 = 3100. In 2001 = 3100 - 450 + 550 = 3200. Percentage increase in the strength of the school from 1997 to 1998     = (3000 - 2950) x 100 % = 1.69%     1.7%. 2950
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