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RRC Group D Previous Paper 1 (Held On: 17 Sep 2018 Shift 1)
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  1. 12
  2. 4032
  3. 7
  4. 448

Answer (Detailed Solution Below)

Option 3 : 7
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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ఉపయోగించిన సూత్రం:

గణన:

⇒ 56 ÷ [(1/3){15 + 12 - (9 + 6 - 12)}]

⇒ 56 ÷ [(1/3){15 + 12 - (15 - 12)}]

⇒ 56 ÷ [(1/3){15 + 12 - 3}]

⇒ 56 ÷ [(1/3){27 - 3}]

⇒ 56 ÷ [(1/3)(24)]

⇒ 56 ÷ 8

⇒ 7

∴ ? = 7

Important Points 

ఏదైనా సరళీకరణ సమస్యలో ఏదైనా ఆపరేషన్ పైన ( ̅ ) బార్ గుర్తు ఉన్నట్లయితే, మనం ఆపరేషన్ ఏదైనప్పటికీ ప్రారంభంలోనే ఆపరేషన్ చేయాలి. అప్పుడు మేము పైన ఇచ్చిన చార్ట్‌ను అనుసరిస్తాము.  

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