Question :
| School | Number of students scoring marks less than 50% | Percentage of students scoring marks more than 50% | Number of students appeared |
| A | 270 | 55 | 600 |
| B | 120 | 40 | 400 |
| C | 300 | 20 | 375 |
| D | 220 | 10 | 350 |
| E | 200 | 25 | 300 |
Study the above table and answer the question.
The ratio of the total number of students scoring marks less than 50% to that of scoring marks exactly 50% is:
Option 1: 111 : 12
Option 2: 111 : 24
Option 3: 101 : 24
Option 4: 101 : 12
Correct Answer: 111 : 24
Solution :
As per the given graph,
The total number of students = 600 + 400 + 375 + 350 + 300 = 2025
The number of students scoring marks less than 50% = 270 + 120 + 300 + 220 + 200 = 1110
The number of students scoring marks more than 50% = 600 × 0.55 + 400 × 0.4 + 375 × 0.20 + 350 × 0.1 + 300 × 0.25 = 330 + 160 + 75 + 35 + 75 = 675
The number of students scoring exactly 50% = 2025 – 1110 – 675 = 240
The required ratio = 1110 : 240 = 111 : 24
Hence, the correct answer is 111 : 24.
Related Questions
Question : Calculate the mean from the following table.
| Scores | Frequencies |
| 0-10 | 2 |
| 10-20 | 4 |
| 20-30 | 12 |
| 30-40 | 21 |
| 40-50 | 6 |
| 50-60 | 3 |
| 60-70 | 2 |
Option 1: 33.4
Option 2: 32.6
Option 3: 35.8
Option 4: 34.2
Question : Study the given table and answer the question that follows.
| Number of children | Number of families |
| 0 | 4 |
| 1 | 22 |
| 2 | 15 |
| 3 | 6 |
| 4 | 2 |
The average number of children per family is :
Option 1: 1.47
Option 2: 1.59
Option 3: 1.23
Option 4: 1.72
Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 18 | 21 | 24 |
| 24 | 33 | 27 |
| 12 | ? | 16 |
| 16 | 22 | 18 |
Option 1: 36
Option 2: 32
Option 3: 42
Option 4: 38
Question : The table below shows the number of students commuting to school by different modes of transport:
| Modes of transport | School bus | Bicycle | Walking | Other vehicle |
| Number of boys | 80 | 280 | 130 | 200 |
| Number of girls | 140 | 190 | 90 | 250 |
Which mode of transport is used by a maximum number of students?
Option 1: Bicycle
Option 2: Walking
Option 3: Other vehicles
Option 4: School bus
Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 8 | 27 | 32 | 16 |
| 12 | 18 | 16 | 20 |
| 18 | 12 | ? | 25 |
Option 1: 8
Option 2: 14
Option 3: 10
Option 4: 12
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