Ashifur August 8, 2023 - 14:43
Problem: ১৯৮১ সনে পৃথিবীর জনসংখ্যা ছিল 8,৪৯২ মিলিয়ন এবং জনসংখ্যা বৃদ্ধির হার ছিল ১.৭০% ৷ এই আলোকে প্রতিদিন জনসংখ্যা কতজন করে বৃদ্ধি পায়?

View all: KARMASANGSTAN BANK | OFFICER | WRITTEN QUESTION(MATH) SOLVE | 1999

Correct Answer: ২,০৯,২১৬.৪৩ জন

Explanation:

আমরা জানি, ১ মিলিয়ন  ১০০০০০০ জন

৪,৪৯২ মিলিয়ন = (88৯২ x ১০০০০০০) হাজার= ৪8৯২০০০০০০ হাজার

১০০ জনে বৃদ্ধি পায় = ১.৭০

১জনে বৃদ্ধি পায় = $\frac{১.৭০}{১০০} $

১,০০০ জনে বৃদ্ধি পায় = $\frac{১.৭০x১০০০}{১০০}$ জন

১,০০০ জনে ১ বছরে বৃদ্ধি পায় = ১৭ জন

৪৪৯২০০০০০০ জনে ১ দিনে বৃদ্ধি পায় = $ \frac{১৭x৪৪৯২০০০০০০}{৩৬৫x১,০০০} $ = ২,০৯,২১৬.৪৩ জন

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