Question
Download Solution PDF20 এবং 36 সংখ্যা দুটির বিনিময় করলে নিচের কোন সমীকরণটি সঠিক হবে?
I. 55 + 42 - 36 x 20 ÷ 9 = 17
II. 20 ÷ 2 x 36 + 81 - 41 = 400
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFBODMAS টেবিল:
প্রদত্ত সমীকরণ I: 55 + 42 - 36 x 20 ÷ 9 = 17
এখন, যদি '20 এবং 36' বিনিময় করা হয়, তাহলে:
⇒ 55 + 42 - 20 x 36 ÷ 9 = 17
⇒ 55 + 42 - 20 x 4 = 17
⇒ 55 + 42 - 80 = 17
⇒ 9 7 - 80 = 17
= 17 = 17।
LHS = RHS.
প্রদত্ত সমীকরণ II: 20 ÷ 2 x 36 + 81 - 41 = 400
এখন, যদি '20 এবং 36' বিনিময় করা হয়, তাহলে:
⇒ 36 ÷ 2 x 20 + 81 - 41 = 400
⇒ 18 x 20 + 81 - 41 = 400
⇒ 360 + 81 - 41 = 400
⇒ 441 - 41 = 400
= 400 = 400
LHS = RHS.
এখানে, প্রদত্ত চিহ্নটি বিনিময় করার পর I এবং II উভয়ই সঠিক সমীকরণ।
সুতরাং, সঠিক উত্তর হল "বিকল্প 3" ।
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