Data Interpretation - Table Charts - Discussion
Discussion Forum : Table Charts - Table Chart 7 (Q.No. 5)
Directions to Solve
A school has four sections A, B, C, D of Class IX students.
The results of half yearly and annual examinations are shown in the table given below.
| Result | No. of Students | |||
| Section A | Section B | Section C | Section D | |
| Students failed in both Exams | 28 | 23 | 17 | 27 |
| Students failed in half-yearly but passed in Annual Exams | 14 | 12 | 8 | 13 |
| Students passed in half-yearly but failed in Annual Exams | 6 | 17 | 9 | 15 |
| Students passed in both Exams | 64 | 55 | 46 | 76 |
5.
Which section has the minimum failure rate in half yearly examination?
Answer: Option
Explanation:
Total number of failures in half-yearly exams in a section
= [ (Number of students failed in both exams)
+ (Number of students failed in half-yearly but passed in Annual exams)
] in that section
Failure rate in half-yearly exams in Section A
| = |  |
Number of students of Section A failed in half-yearly | x 100 | ![]](/_files/images/data-interpretation/common/15-sym-cbracket-h1.gif) |
% |
| Total number of students in Section A |
| = | |
(28 + 14) | x 100 | |
% |
| (28 + 14 + 6 + 64) |
| = | |
42 | x 100 | |
% |
| 112 |
= 37.5%.
Similarly, failure rate in half-yearly exams in:
| Section B | |
(23 + 12) | x 100 | |
% = | |
35 | x 100 | |
% = 32.71%. |
| (23 + 12 + 17 + 55) | 107 |
| Section C | |
(17 + 8) | x 100 | |
% = | |
25 | x 100 | |
% = 31.25%. |
| (17 + 8 + 9 + 46) | 80 |
| Section D | |
(27 + 13) | x 100 | |
% = | |
40 | x 100 | |
% = 30.53%. |
| (27 + 13 + 15 + 76) | 131 |
Clearly, the failure rate is minimum for Section D.
Discussion:
5 comments Page 1 of 1.
Vidya said:
4 years ago
Option C is the correct answer.
(2)
Joseph mathew said:
7 years ago
I think it isn't required to add the number of failures in half-yearly and number of failures in both the exams.
Taking only the number of failures in half-yearly in consideration can be a simple method.
Taking only the number of failures in half-yearly in consideration can be a simple method.
Shadab Akhtar said:
9 years ago
By seeing the graph only you can calculate the section which has a minimum failure rate in half yearly examination.
See the result of students passed in half yearly exam, clearly it showing that section D has maximum no. of students who have passed the exam i.e 15 which means minimum no. of students failed from this section.
See the result of students passed in half yearly exam, clearly it showing that section D has maximum no. of students who have passed the exam i.e 15 which means minimum no. of students failed from this section.
Waseem said:
9 years ago
Here the minimum failure rate should be calculated on the basis of (Students passed in both Exams-Students failed in half-yearly=100-76=24).
Abhishek said:
1 decade ago
It can also be done by calculating the max success rate in mid term exams. Right ? it gives the same final answer. Section D will has the highest in mid term. Hence minimum failure. Please let me know.
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