Question : The number of students in three different streams in different colleges is given below:
|
Stream $\rightarrow$ College $\downarrow$ |
Science | Arts | Commerce |
| 1 | 1550 | 1900 | 2200 |
| 2 | 1800 | 1700 | 2400 |
| 3 | 1650 | 1850 | 2250 |
| 4 | 1700 | 1250 | 3250 |
The difference between the average number of students per college in commerce and the average number of students per stream in college 2 (Correct to 2 decimal places) is:
Option 1: 558.33
Option 2: 819.67
Option 3: 891.67
Option 4: 981.67
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Correct Answer: 558.33
Solution :
From the given chart:
Total number of students in commerce in all four colleges
$=2200+2400+2250+3250 = 10100$
Average number of students per college in commerce
$=\frac{\text{Total number of students in commerce}}{\text{Total number of colleges}} = \frac{10100}{4} = 2525$
Total number of students in all the streams in college 2 = $1800+1700+2400 = 5900$
The average number of students per stream in college 2
$=\frac{\text{Total number of students in college 2}}{\text{Total number of streams}} = \frac{5900}{3} = 1966.67$
$\therefore$ Difference between the average number of students per college in commerce and the average number of students per stream in college 2 = $2525-1966.67=558.33$
Hence, the correct answer is 558.33.
Related Questions
Question : The following table shows the number of children in each house of a society.
| Number of Children | Number of Houses |
| 0 | 4 |
| 1 | 10 |
| 2 | 19 |
| 3 | 3 |
What is the average number of children per house?
Option 1: 1.58
Option 2: 1.83
Option 3: 2.08
Option 4: 1.33
Question : Study the given table and answer the question that follows.
The table indicates the number of students studying in three disciplines in four different colleges.
The table indicates the number of students studying in three disciplines in four different colleges.
| Disciplines | Colleges | |||
| A | B | C | D | |
| Commerce | 520 | 550 | 515 | 690 |
| Management | 212 | 234 | 289 | 390 |
| Agriculture | 234 | 567 | 456 | 876 |
Which college has the minimum number of students in Commerce?
Option 1: A
Option 2: B
Option 3: C
Option 4: D
Question : The table given below shows the number of girls in 7 schools.
| Schools | Girls |
| J | 450 |
| K | 1050 |
| L | 550 |
| M | 850 |
| N | 650 |
| P | 250 |
| Q | 150 |
What is the total number of girls in all the schools?
Option 1: 3850
Option 2: 3950
Option 3: 3750
Option 4: 3620
Question : Directions: Find the missing number.
| 3 | 4 | 64 |
| 2 | 3 | 9 |
| 3 | 2 | 8 |
| 9 | 2 | ? |
Option 1: 216
Option 2: 512
Option 3: 128
Option 4: 1024
Question : The following table shows the quantity of stocks and their average cost. What is the value of the total stock?(in lakh rupees)
| Quantity of stock | Average cost(Rs.) | |
| Mobile phones | 25 | 15000 |
| Cameras | 80 | 16000 |
| TVs | 54 | 55000 |
| Refrigerators | 41 | 27000 |
| ACs | 64 | 24000 |
Option 1: 264
Option 2: 137
Option 3: 72.68
Option 4: 726.8
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