A vendor bought lemons at 7 for ₹1.

A vendor bought lemons at 7 for ₹1. How many lemons must he sell for ₹1 to gain 40%?
एक विक्रेता ने ₹1 में 7 नीबूं खरीद। 40% लाभ कमाने के लिए उसे ₹ 1 में कितने नीबूं बेचने होंगे?

6 9 7 5

Detailed Solution & Logic

Correct Answer:

5

Cost price of 7 lemons = ₹1
C.P. of 1 lemon = $ \frac{1}{7} $
Gain = 40%
Required S.P. of 1 lemon = $ \frac{1}{7}\times\frac{140}{100}=\frac{1}{5} $
If S.P. of 1 lemon $ =\frac{1}{5}, \text{ then lemons sold for ₹1} = 5 $
Answer = 5

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