প্রশ্ন ও উত্তর
The ratio of boys and girls in a class is 4 : 5. If 10% of the boys and 20% of the girls failed in an examination, what percentage of students passed in the exam?
গণিত শতকরা 05 Oct, 2018
প্রশ্ন The ratio of boys and girls in a class is 4 : 5. If 10% of the boys and 20% of the girls failed in an examination, what percentage of students passed in the exam?
সঠিক উত্তর
None
ব্যাখ্যা
সঠিক উত্তর হবে 84.44%
মন্তব্য
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