Question

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58. A bottle contains 20 litres of liquid A.
4 litres of liquid A is taken out of it and
replaced by same quantity of liquid B.
Again 4 litres of the mixture is taken
out and replaced by same quantity of
liquid B. What is the ratio of quantity of
liquid A to that of liquid B in the final
mixture?
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a.
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la 4:1​

Answer 1

Answer:

16 : 9

Step-by-step explanation:

After removing 4L of liquid A and adding 4L of liqud B.

Mixture becomes this way.

16L of A & 4L of B. Total liquid is 20.

So, ratio for A = 16/20 and for B = 4/20. Now again 4L of mixture is taken out and 4L of liquid B is added.

So,

A : B

16 - 16/20*4 : 4 - 4/20*4 +4

= 16 : 9