Subject
বীমা কর্পোরেশন
Topic
সাধারণ বীমা কর্পোরেশন (সহকারী ব্যবস্থাপক)(IBA,DU) ০৮.১১.২০২৪
In a school, students may bring breakfast, buy it, or may not eat breakfast. If 1/4 of the students bring breakfast, 1/7 don't eat breakfast, and 187 buy it, how many students bring breakfast?
In a school, students may bring breakfast, buy it, or may not eat breakfast. If 1/4 of the students bring breakfast, 1/7 don't eat breakfast, and 187 buy it, how many students bring breakfast?
ক)
49খ)
58গ)
68ঘ)
77ঙ)
NoneExplanation
মনেকরি, স্কুলে ছাত্র-ছাত্রীর সংখ্যা = x প্রশ্নমতে, x/4 + x/7 + 187 = x => 187 = x - x/4 - x/7 => 187 = (28x - 7x - 4x)/28 => 187 = 17x/28 => x = (28 * 187)/17 => x = 298 ∴ breakfast আনে = 298/4 = 77 জনRelated questions
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