Question

In what ratio must a solution of milk and water containing 42% milk

Answer 1

Answer:

29.6

Explanation:

Suppose a container contains

x

units of a liquid from which

y

units are taken out and replaced by water. After

n

operations, quantity of pure liquid

=

x

(

1

−

y

x

)

n

units.

milk contained by the container now

=

40

(

1

−

4

40

)

3

=

40

(

1

−

1

10

)

3

=

40

×

9

10

×

9

10

×

9

10

=

4

×

9

×

9

×

9

100

=

29.16

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