Study the following line graph which gives the number of students who joined and left the school in the beginning of year for six years, from 1996 to 2001.
Initial Strength of school in 1995 = 3000.
Among the given years, the largest number of students joined the school in the year?
1996
1998
2001
2000
Correct answer is C
As calculated above, the largest number of students (i.e., 550) joined the school in the year 2001
Study the following line graph which gives the number of students who joined and left the school in the beginning of year for six years, from 1996 to 2001.
Initial Strength of school in 1995 = 3000.
During which of the following pair of years was the strength of the school same?
1999 and 2001
1998 and 2000
1997 and 1998
1996 and 2000
Correct answer is D
As calculated above, in the years 1996 and 2000 the strength of the school was same i.e., 3100.
Study the following line graph which gives the number of students who joined and left the school in the beginning of year for six years, from 1996 to 2001.
Initial Strength of school in 1995 = 3000.
7:9
4:5
3:4
2:3
Correct answer is D
Required ratio = 300/450 = 2/3
Study the following line graph which gives the number of students who joined and left the school in the beginning of year for six years, from 1996 to 2001.
Initial Strength of school in 1995 = 3000.
92.13%
93.75%
96.88%
97.25%
Correct answer is B
Required percentage = ( 3000/3200 x 100 ) % = 93.75%
Study the following line graph which gives the number of students who joined and left the school in the beginning of year for six years, from 1996 to 2001.
Initial Strength of school in 1995 = 3000.
The strength of the school incresed/decreased from 1997 to 1998 by approximately what percent?
1.2%
1.7%
2.1%
2.4%
Correct answer is B
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)/2950 x 100 ] % = 1.69% ≈ 1.7%.
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