Question : The table given below shows the number of students from five classes playing different games.
| Class | Games | ||
| A | B | C | |
| 6th | 30 | 50 | 70 |
| 7th | 60 | 20 | 35 |
| 8th | 40 | 10 | 90 |
| 9th | 38 | 26 | 50 |
| 10th | 25 | 32 | 20 |
Which of the following statements is correct?
I. The average number of students playing A and B in the 9th class is 32.
II. The average number of students playing A and C in the 8th class is 75.
III. The total number of students playing all three games in the 10th class is 77.
Option 1: II and III
Option 2: I, II and III
Option 3: I and III
Option 4: I and II
Correct Answer: I and III
Solution :
I. The average number of students playing A and B in 9th class
= $\frac{38+26}{2}$
= $\frac{64}{2}$
= $32$
II. The average number of students playing A and C in the 8th class
= $\frac{40+90}{2}$
= $\frac{130}{2}$
= $65$
III. The total number of students playing all three games in the 10th class
= 25 + 32 + 20
= 77
$\therefore$ Only I and III are correct.
Hence, the correct answer is I and III.
Related Questions
Question : The following table shows the number of students of class 6, class 7, class 8, class 9 and class 10, in schools A, B and C.
| Class | Class 6 | Class 7 | Class 8 | Class 9 | Class 10 |
| School | |||||
| School A | 25 | 45 | 35 | 55 | 80 |
| School B | 65 | 45 | 55 | 45 | 20 |
| School C | 35 | 65 | 40 | 25 | 30 |
What is the total number of students in class 9 and class 10, taken together, in school B?
Option 1: 55
Option 2: 100
Option 3: 135
Option 4: 65
Question : The table given below shows the production of five companies in two years.
| Company | Years | |
| L | M | |
| P | 150 | 200 |
| Q | 190 | 220 |
| R | 130 | 180 |
| S | 180 | 150 |
| T | 120 | 140 |
Which of the following statements is NOT correct?
I. The average production of P, Q, R, and S in year L is 172.5.
II. The ratio of the production of T in year L to the production of T in year M is 6 : 7.
Option 1: Only I
Option 2: Both I and II
Option 3: Neither I nor II
Option 4: Only II
Question : The table given below shows the number of bikes of 5 different types sold by two companies.
| Company | ||
| Bikes | C1 | C2 |
| A | 50 | 80 |
| B | 30 | 40 |
| C | 70 | 90 |
| D | 80 | 110 |
| E | 100 | 140 |
Which of the following statements is correct?
I. The Ratio of the number of bikes A sold by C1 to the number of bikes D sold by C2 is 5 : 11.
II. The average number of bikes A, B, D and E sold by C1 is 75.
Option 1: Neither I nor II
Option 2: Only I
Option 3: Only II
Option 4: Both I and II
Question : The table given below shows the number of students in 6 different schools.
| Schools | Students |
| A | 120 |
| B | 60 |
| C | 70 |
| D | 80 |
| E | 30 |
| F | 50 |
The number of students in school A is what percentage of the number of students in school F?
Option 1: 41.66%
Option 2: 200%
Option 3: 240%
Option 4: 120%
Question : The following table shows the number of girls and boys in different classes. Find the sum of total number of students in all class.
| Class | Number of girls | Number of boys |
| 5 | 88 | 76 |
| 6 | 140 | 92 |
| 7 | 54 | 80 |
| 8 | 84 | 68 |
| 9 | 90 | 70 |
Option 1: 840
Option 2: 842
Option 3: 800
Option 4: 760
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