যদি নিম্নলিখিত সমীকরণে '+' এবং '-' এর অবস্থান বিনিময় করা হয়, এবং '×' এবং '÷' এর অবস্থানও বিনিময় করা হয়, তাহলে সমীকরণে প্রশ্নবোধক চিহ্ন (?) এর স্থানে কী মান আসবে?

49 - 4 ÷ 120 × 8 + 100 = ?

This question was previously asked in
RRB Group D Previous Year Paper (Held on: 26 Aug 2022 Shift 2)
View all RRB Group D Papers >
  1. 3
  2. 12
  3. 6
  4. 9

Answer (Detailed Solution Below)

Option 4 : 9
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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BODMAS অনুযায়ী

49 - 4 ÷ 120 × 8 + 100 = ?

চিহ্নগুলি বিনিময় করলে -

⇒ 49 + 4 x 120 ÷ 8 - 100 = ?

⇒ 49 + 4 x 15 - 100 = x

⇒ 49 + 60 - 100 = x

⇒ 109 - 100 = 9

সুতরাং, প্রশ্নবোধক চিহ্নের স্থানে 9 আসবে।

অতএব সঠিক উত্তর হল "বিকল্প 4"

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