In a class of 1500 students, the percentage of girls is 30%. If 80% of the boys failed the examination, find t he number of boys
who passed in the examination.
This questions was previously asked in
SSC MTS 26th July 2022 Shift-2
Explanation:
- Total students in class: 1500
- Percentage of girls in the class: 30%
- Number of girls: 30% of 1500 = 450
- Number of boys: 1500 - 450 = 1050
- Percentage of boys who failed: 80%
- Number of boys who failed: 80% of 1050 = 840
- Number of boys who passed: 1050 - 840 = 210
210 boys passed the examination.
- Option 1 (630): Incorrect, more boys than initially possible.
- Option 2 (210): Correct answer.
- Option 3 (550): Incorrect, miscalculation present.
- Option 4 (840): Incorrect, this number represents those who failed.
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