Question : Study the given table and answer the question that follows.
| School name | Total number of students enrolled | Percentage of enrolled students who opted for Biology | The ratio of male to female students who opted for Biology |
| A | 900 | 30 | 7 : 8 |
| B | 400 | 38 | 9 : 10 |
| C | 1000 | 24 | 5 : 19 |
| D | 800 | 20 | 5 : 7 |
Find the number of students who opted for Biology in School D.
Option 1: 20
Option 2: 160
Option 3: 120
Option 4: 800
Correct Answer: 160
Solution :
Number of students who opted for Biology in School D
= 20% of 800
= $\frac{20×800}{100}$
= 160
Hence, the correct answer is 160.
Related Questions
Question : The following table shows the data of 10th-grade students of Portland High School.
| Boys | Girls | |
| Enrolled in Science | 25 | 20 |
| Not enrolled in Science | 20 | 30 |
What is the approximate percentage of the 10th-grade boys of Portland High School who are NOT enrolled in Science?
Option 1: 22.22%
Option 2: 55.55%
Option 3: 33.33%
Option 4: 40%
Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| ? | 8 | 11 |
| 7 | 6 | 5 |
| 48 | 63 | 72 |
Option 1: 7
Option 2: 5
Option 3: 6
Option 4: 4
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 : 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
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