Question Detail
Study the following line graph which gives the number of students who joined and left the school in the beginning of the year for six years from 1996 to 2001.
Initial strength of the school in 1995 was 3000
Answer questions based on the line graph given below.
The strength of the school increased from 1997 to 1998 by what percent ?
- 1.7%
- 1.8%
- 1.9%
- 2%
Answer: Option A
Explanation:
Let analyse the graph before answering question.
Number of students in 1995 = 3000 [given]
Number of students in 1996 = 3000-250+350 = 3100
Number of students in 1997 = 3100-450+300 = 2950
Number of students in 1998 = 2950-400+450 = 3000
Number of students in 1999 = 3000-350+500 = 3150
Number of students in 2000 = 3150-450+400 = 3100
Number of students in 2001 = 3100-450+550 = 3200
Above analysis will help us solving problems for this line graph.
Lets be back on question now,
Percentage increase in strength of the school from 1997 to 1998 will be,
\begin{aligned}
\left(\frac{(3000-2950)}{2950} *100\right)\% \\
= 1.69\%
\end{aligned}
So this is approx equal to 1.7%
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