70% 1500 are boys and if 1/3 of boys and 40%of girls wear spectacles. how many students in college were spectacles.
Answers
Answer:
Correct Question :
In a college , 75% of the total 1500 students are boys. If ⅓ rd of the boys and 40% of the girls wear spectacles then how many students wear spectacles?
Solution -
In the college
Total number of students : 1500
Number of boys -
> 75% of 1500
> 75 × 15
> 1125 .
Number of girls -
> Total number of students - Number of boys
> 1500 - 1125
> 375 Girls.
1/3 rd of the boys wear spectacles .
Number is boys wearing spectacles -
> 1/3rd of 1125
> 375 boys
40% of the girls wear spectacles
Number of girls wearing spectacles -
> 40% of 375
>2/5 × 375
> 150 girls.
Total number of students in the college wearing spectacles :
> 375 + 150
> 525 students.
Hence , a total of 525 students in that college wear spectacles .
This is the required answer .
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