Subject
Bank Exam
Topic
Joint Recruitment Test for 7 Banks and Financial Institutions - (Senior Officers) - 05.11.2021
The city library donated some books to a class. If each student takes 4 books, there will be 20 books left. If 3 students do not take a book and the rest of the students take 5 books each, there will be no books left. How many books were donated to the class?
The city library donated some books to a class. If each student takes 4 books, there will be 20 books left. If 3 students do not take a book and the rest of the students take 5 books each, there will be no books left. How many books were donated to the class?
ক)
120খ)
140গ)
160ঘ)
175Explanation
মনেকরি, মোট দানকৃত বই= x এবং মোট ছাত্র সংখ্যা =y প্রশ্নমতে ,4y+20=x..........i এবং 5(y-3)=x বা,5y-15=x...........ii i × 5-ii×4 20y+100=5x 20y -60=4x ...................... 160=x x=160 মোট বইয়ের সংখ্যা 160 টিRelated questions
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