बीना और नीना प्रतिदिन 10 घंटे कार्य करके 8 दिनों में एक दर्जन स्वेटर बुनती हैं। यदि उन्हें 5 दिनों में कार्य पूरा करना है, तो उन्हें प्रति दिन कितने घंटे कार्य करना चाहिए?  

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RRB Group D 20 Sept 2022 Shift 1 Official Paper
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  1. 11
  2. 14
  3. 16
  4. 12

Answer (Detailed Solution Below)

Option 3 : 16
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RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

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दिया गया:

बीना और नीना प्रतिदिन 10 घंटे कार्य करके 8 दिनों में एक दर्जन स्वेटर बुनती हैं।

प्रयुक्त अवधारणा:

क्षमता × समय / कार्य = स्थिर 

गणना:

माना कि कार्य को 5 दिनों में पूरा करने के लिए उनके द्वारा लिया गया समय x है।

अवधारणा के अनुसार,

क्षमता × समय / कार्य = स्थिर 

इसलिए, (नीना की क्षमता + बीना की क्षमता)× 8 × 10/12 = (नीना की क्षमता + बीना की क्षमता)× 5 × x/12

⇒ x = 80/5 = 16 दिन 

इसलिए, अभीष्ट मान 16 दिन है।

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