In a university, 80 percent of the students lived in hostel, and 60 percent of the hostel students are lucky to get a single room. If number of lucky students is 1200, then how many students were there in the university?

dsuc.created: 7 years ago | dsuc.updated: 1 week ago

dsuc.updated: 1 week ago

2500

2400

2000

1500

1800

Social Islami Bank Ltd Social Islami Bank Ltd - Trainee Officer - 31.12.2010 গণিত শতকরা (Percentage)

dsuc.explanation

973

common.best_ans:

Let,

total No. of students = x

No. of students lived in hostel = x × 80% = 0.8x

No.of Lucky students = 0.8x × 60% = 0.8x × 0.6 = 0.48x

According to question,

0.48x = 1200

x = (1200 ×100)/048

x = 2500

7 years ago

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Md Azizur Rahman

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গণিত

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