Question : Study the given table and answer the question that follows.
The table shows the classification of 100 students based on the marks obtained by them in history and geography in an examination.
| Subject | Mark out of 50 | ||||
| 40 and above | 30 and above | 20 and above | 10 and above | 0 and above | |
| History | 9 | 32 | 80 | 92 | 100 |
| Geography | 4 | 21 | 66 | 81 | 100 |
| Average (Aggregate) |
7 | 27 | 73 | 87 | 100 |
Based on the table, what is the number of students scoring less than 20% marks in aggregate?
Option 1: 13
Option 2: 11
Option 3: 10
Option 4: 12
Correct Answer: 13
Solution :
Given that 20% of 50 marks = 0.2 × 50 = 10 marks
The number of students scoring less than 20% marks in aggregate = The number of students scoring 0 and above marks in aggregate – The number of students scoring 10 and above marks in aggregate
= 100 – 87 = 13.
Hence, the correct answer is 13.
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