যদি A এর 80% = B এর 50% এবং B = A এর x% হয়, x এর মান কত হবে? 

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  1. 400
  2. 300
  3. 160
  4. 150

Answer (Detailed Solution Below)

Option 3 : 160
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প্রদত্ত:

A এর 80% = B এর 50% এবং B = A এর x% 

গণনা:

A এর 80% = B এর 50% 

⇒ \(\dfrac{80}{100}\) A = \(\dfrac{50}{100}\) B

⇒ 8A = 5B

⇒ \(\dfrac{A}{B} = \dfrac{5}{8} \)

 B = \(\dfrac{8}{5} \times 100\) = 160 

সুতরাং, x এর মান 160 হবে। 

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