8 रुपये प्रति किलोग्राम की कीमत वाले कितने

किलोग्राम गेंहूँ को 5.40 प्रति किलोग्राम कीमत वाले चावल के 40 किलोग्राम के साथ मिश्रित किया जाना चाहिए, ताकि मिश्रण को 7.20 प्रति किलोग्राम की दर से बेचने पर 20% का लाभ प्राप्त किया जा सके?

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MPPEB Assistant Grade III/Stenographer (Group 4)(Held On 28th July 2018 Shift 1)
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  1. 14 किलोग्राम 
  2. 16 किलोग्राम 
  3. 10 किलोग्राम 
  4. 12 किलोग्राम 

Answer (Detailed Solution Below)

Option 4 : 12 किलोग्राम 
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MP व्यापम ग्रुप 4 सामान्य हिंदी सब्जेक्ट टेस्ट 1
20 Qs. 20 Marks 20 Mins

Detailed Solution

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चूँकि हमें मिश्रण को 7.20 रुपये प्रति किग्रा की दर से बेचकर 20% का लाभ कमाना है

अत: मिश्रण का क्रय मूल्य = 7.20 × 100 / (100+20)

= 720/120

=  6 रुपये/किग्रा

अनुपात जिसमें मिश्रण मिलाया जाना चाहिए = (6 - 5.40) : (8 - 6)

= 0.6 : 2 = 3 : 10 = 1 : (10/3)

इसलिए, अभीष्ट गेहूँ की मात्रा = 40 ÷ (10/3) = 12 किग्रा

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