கொடுக்கப்பட்ட சமன்பாட்டைச் சரியாகச் செய்ய எந்த இரண்டு குறிகளை மாற்றிக் கொள்ள வேண்டும்?

10 - 4 + 13 ÷ 15 × 3 = 71 

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SSC CGL 2023 Tier-I Official Paper (Held On: 18 Jul 2023 Shift 1)
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  1. + மற்றும் × 
  2. - மற்றும் ÷
  3. ÷ மற்றும் × 
  4. - மற்றும் × 

Answer (Detailed Solution Below)

Option 3 : ÷ மற்றும் × 
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Detailed Solution

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BODMAS 

கொடுக்கப்பட்ட கூற்று: 10 - 4 + 13 ÷ 15 × 3 = 71 

கேள்வியின் படி, குறிகளை மாற்றிய பின்:
 
அதனால்,
 
  • விருப்பம் - (1) : + மற்றும் ×

10 - 4 + 13 ÷ 15 × 3 = 71 ⇒ 10 - 4 × 13 ÷ 15 + 3 = 71

10 - × 0.87 + 3 = 71 

10 + 3 - 3.48 = 71

13 - 3.48 = 71

9.52 ≠ 71 (LHS ≠ RHS)

  • விருப்பம் - (2) : - மற்றும் ÷ 

10 - 4 + 13 ÷ 15 × 3 = 71 ⇒ 10 ÷ 4 + 13 - 15 × 3 = 71

2.5 + 13 - 15 × 3 = 71

2.5 + 13 - 45 = 71

15.5 - 45 = 71

29.5 ≠ 71 (LHS ≠ RHS)

  • விருப்பம் - (3) : ÷ மற்றும் × 

10 - 4 + 13 ÷ 15 × 3 = 71 ⇒ 10 - 4 + 13 × 15 ÷ 3 = 71

10 - 4 + 13 × 5 = 71

10 + 65 - 4 = 71

75 - 4 = 71

71 = 71 (LHS = RHS)

  • விருப்பம் - (4) : - மற்றும் ×

10 - 4 + 13 ÷ 15 × 3 = 71 ⇒ 10 × 4 + 13 ÷ 15 - 3 = 71

10 × 4 + 0.87 - 3 = 71 

40 + 0.87 - 3 = 71

40.87 - 3 = 71

37.87 ≠ 71 (LHS ≠ RHS)

எனவே, "விருப்பம் - (3)" என்பது சரியான பதில்.
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