दूध और पानी के 729 मि.ली. मि.ली. मिश्रण में दूध तथा पानी का अनुपात 7:2 है। इसमें कितना पानी और डाला जाएं कि दूध और पानी का अनुपात 7:3 हो जाए ? .

Answers 1

Answer:

81 ml

Step-by-step explanation:

let the amount of milk =7x

_____________water=2x

According to question:

7x+2x=729

9x=729

x=81

Final amount of water= 3x

3×81=243

initial amount of water=2x

2×81=162

amount to be added= 243-162=81

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