যদি a : b = 2 : 3 এবং b : c = 4 : 5 হয়, তাহলে a : b : c নির্ণয় করুন।

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Bihar CET B.Ed Official Paper (Held On: 25 Jun, 2024)
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  1. 8 : 12 : 15
  2. 15 : 12 : 8
  3. 2 : 5 : 15
  4. 24 : 12 : 8

Answer (Detailed Solution Below)

Option 1 : 8 : 12 : 15
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IGNOU B.Ed Part B: Social Studies Practice Quiz
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প্রদত্ত:

a : b = 2 : 3

b : c = 4 : 5

ব্যবহৃত সূত্র:

a : b : c নির্ণয় করতে, উভয় অনুপাতের 'b' এর মান সমান করতে হবে।

গণনা:

a : b = 2 : 3 ⇒ 4 দিয়ে গুণ করুন ⇒ a : b = 8 : 12

b : c = 4 : 5 ⇒ 3 দিয়ে গুণ করুন ⇒ b : c = 12 : 15

এখন, 'b' এর মান সমান (12).

⇒ a : b : c = 8 : 12 : 15

a : b : c = 8 : 12 : 15

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