Question : The following table shows the marks distribution among the students in a class.
| Marks | No.of Students |
| Less than 10 | 2 |
| Less than 20 | 5 |
| Less than 30 | 6 |
| Less than 40 | 8 |
| Less than 50 | 10 |
How many students scored marks between 20 and 30?
Option 1: 2
Option 2: 5
Option 3: 1
Option 4: 6
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Correct Answer: 1
Solution :
The number of students who scored less than 20 = 5
The number of students who scored less than 30 = 6
So, the number of students scored marks between 20 and 30 = 6 – 5 = 1
Hence, the correct answer is 1.
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