Question

A dishonest milkman used to mix water with milk and sell it . An oil merchant saw him and decided to do the same . But he was not successful . What do you think could go wrong? Milk + water = successful Oil + water = not successful .why??​

Answer 1

Answer:

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A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 20%. The percentage of water in the mixture is

Medium

Solution

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Correct option is C)

If a trader professes to sell his goods at cost price but uses false weights, then

Gain%=

Truevalue−Error

Error

×100%

Here gain=25%

Here error= quantity of water he mixes in the milk=x

Here the true value=true quantity of milk=T

So the formula becomes 25=

T−x

x

×100

⇒1=

T−x

x

×4

⇒T−x=4x

⇒T=5x

Percentage of water in the mixture=

T

x

×100=

5x

x

×100=20%

Explanation:

I hope it helps u

Answer 2

Answer:

because of density difference between oil and water makes them immisble .