Does this seem milky

Algebra Level 3

There is 80 kg pure milk in a container. You take out 8kg milk and pour in water in its place. You did this process three times in all . How much milk is left in the container now (in kg)?


The answer is 58.32.

Kartik Tyagi by Kartik Tyagi , 36, India

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1 solution

Kartik Tyagi
Mar 9, 2016

X amount of pure solution ,Y amount of replaced solution and 'n' number of times the process done is given by X(1-Y/X)^n

1 Helpful 0 Interesting 0 Brilliant 0 Confused

Correction: X × ( 1 − Y X ) n X \times (1- \frac{Y}{X})^n

Yash Jain - 5 years, 3 months ago

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What is the correction boy.....

Kartik Tyagi - 5 years, 3 months ago

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Your expression is not wrong but it seems to be like we first need to subtract Y from 1 and then divide by X.

Yash Jain - 5 years, 3 months ago

x × ( 1 − y x ) n x \times \left(1-\dfrac{y}{x}\right)^n

Rishik Jain - 5 years, 3 months ago

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