Question : Study the following table and answer the question that follows.
| School Name |
Total number of students enrolled |
Percentage of students who opted for statistics |
| A | 450 | 20 |
| B | 200 | 18 |
| C | 500 | 12 |
| D | 400 | 15 |
What is the average number of students who opted for other than statistics subjects in schools A and D?
Option 1: 7340
Option 2: 360
Option 3: 355
Option 4: 350
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Correct Answer: 350
Solution :
In school A,
Number of students opted for other than statistics subject = (100 - 20)% of 450
= $\frac{80}{100}\times 450$ = 360
In school D,
Number of students opted for other than statistics subject = (100 - 15)% of 400
= $\frac{85}{100}\times 400$ = 340
So, required average = $\frac{360+340}{2}$ = $\frac{700}{2}$ = 350
Hence, the correct answer is 350.
Related Questions
Question : The table given below shows the number of persons participating in a survey from 6 different states.
| States | Persons |
| J | 200 |
| K | 300 |
| L | 500 |
| M | 600 |
| N | 700 |
| P | 900 |
Number of persons participating in the survey from L is what percent of the number of persons participating in the survey from J?
Option 1: 200 percent
Option 2: 250 percent
Option 3: 80 percent
Option 4: 40 percent
Question : Study the following table and answer the question below.
| School name | Total no 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 : 15 |
| D | 800 | 18% | 5 : 7 |
What is the ratio of the total number of male students to that of female students who opted for Biology in schools A and D together?
Option 1: 38 : 31
Option 2: 21 : 38
Option 3: 31 : 28
Option 4: 31 : 38
Question : Direction: Find the missing number from the given alternatives.
| 2 | 4 | 0 |
| 1 | 2 | 4 |
| 3 | 1 | 3 |
| 36 | ? | 91 |
Option 1: 73
Option 2: 68
Option 3: 101
Option 4: 55
Question : Direction: Select the missing number from the given alternatives:
| 7 | 14 | 4 |
| 4 | 12 | 9 |
| 6 | 24 | ? |
Option 1: 19
Option 2: 16
Option 3: 21
Option 4: 20
Question : Direction: Find the missing number from the given alternatives.
| 7 | 10 | 5 |
| 16 | 40 | 8 |
| 15 | ? | 9 |
Option 1: 75
Option 2: 45
Option 3: 20
Option 4: 30
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