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Q.

A milkman buys milk at Rs. 25 per liter and adds Question Image of water to it and sells the mixture at Rs. 25 per liter. His gain (in %) is:


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a

25

b

20

c

30

d

15 

answer is A.

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Detailed Solution

Concept- Finding the true cost of milk after water addition is the first step. Afterward, locate the pertinent equation illustrating the connection between cost price, selling price, and profit. After that, solve it to determine the mixture's cost price. Apply the percentage gain calculation once again to obtain the gain value above it as a result.
Cost price of one liter milk Question Image Rs. 25
After adding 1/4 liter of water, we can say that CP of Question Image Rs. 25
Question ImageQuestion ImageQuestion ImageQuestion ImageHence, the correct option is 1.
 
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