एक कक्षा में छात्रों का3/5 भाग लड़कियां तथा शेष भाग लड़के है ।यदि लड़कियों का 2/9 और लड़कों का 1/4 छात्र अनुपस्थित हो तो कुल विद्यार्थियों का कितना भाग उपस्थित है
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2
Answer:
23/30
Step-by-step explanation:
3/5 are girls so 2/5 are boys. 2/9 of 3/5 is 6/45 and 1/4 of 2/5 is 1/10. Adding both 6/45 + 1/10 we get 105/450 which is the total students absent . Now , taking the whole class as one unit , we get 1-(105/450) which is 23/30.
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