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GowrisankarT

· started a discussion

· 1 Months ago

9/16 given in question.
correct me if i am wrong

Question:
From a container, 6 ltr. milk was drawn out and was replaced by water. Again 6 ltr. of mixture was drawn out and was replaced by the water. Thus the quantity of milk and water in the container after these two operations is 9 : 16. The quantity of mixture is:
Options:
A) 15 liter
B) 16 liter
C) 25 liter
D) 31 liter
Solution:
Ans: (a) Let total quantity of mixture be x ltr.

\(\cfrac{9}{25}=\left (1- \cfrac {6}{x} \right )^2\)

\(1-\cfrac{3}{5}=\cfrac{6}{x}\Rightarrow x=15\ ltr.\)

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Knowledge Expert

· commented

· 1 Months ago

yes you are wrong...9/25 is correct which has been mentioned in the solution...


Given that, Milk : Water = 9 : 16

Milk : (Milk + Water) = 9 : (9+16)

Milk : Mixture = 9 : 25

SHRIKANT SAHU

· commented

· 1 Months ago

9:16 will be the correct ratio. 9:25 is wrong.
Correct me if I am wrong.

kanhaiya jha

· commented

· 1 Months ago

hi, plesae take 9/25...

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