A vendor started selling vegetables at ₹10 per kg, but couldn’t find buyers at this rate.
A vendor started selling vegetables at ₹10 per kg, but couldn’t find buyers at this rate. So he reduced the price to ₹7.2 per kg, but uses a faulty weight of 900 g instead of 1 kg. Find the percentage change in the actual price.
एक विक्रेता ने सब्जियाँ ₹10 प्रति किलोग्राम की दर से बेचना शुरू किया, लेकिन इस कीमत पर उसे कोई खरीदार नहीं मिला। इसलिए उसने कीमत घटाकर ₹7.2 प्रति किलोग्राम कर दी, परन्तु वह 1 किलोग्राम के स्थान पर केवल 900 ग्राम का गलत बाट इस्तेमाल करता है। वास्तविक (प्रभावी) कीमत में प्रतिशत परिवर्तन ज्ञात कीजिए।
Detailed Solution & Logic
20%
Solution:
Original price = ₹10 per kg
New selling price = ₹7.2 per kg, but he gives only 900 g instead of 1 kg.
Actual price of 1 kg:
$= \frac{7.2}{900} \times 1000$
$= 8$ per kg
Change in actual price:
$= 10 - 8 = 2$
Percentage change:
$= \frac{2}{10} \times 100$
= 20%
Answer: 20% decrease
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