alleryছেলে এবং মেয়েরা যথাক্রমে 150 এবং 90 ডিগ্রির বৃত্তকলা নির্দেশ করে। ছেলে ও মেয়েদের সংখ্যার অনুপাত কত?
A3 : 5
B5 : 4
C4 : 3
D5 : 3
Answer & Solution
Correct answer: D. 5 : 3
বৃত্তকলাগুলির অনুপাত হলো 150 : 90, যা 30 দিয়ে ভাগ করলে কমে দাঁড়ায় 5 : 3।
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