Q.

Solution A contains 10% acid and solution B contains 30% acid. In what ratio should solution A be mixed with Solution B to obtain a mixture with 25% acid?

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a

1:2

b

3:1

c

1:3

d

2:1

answer is C.

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Detailed Solution

By Allegation Method

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So, the ratio is 5:15=1:3

 

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Solution A contains 10% acid and solution B contains 30% acid. In what ratio should solution A be mixed with Solution B to obtain a mixture with 25% acid?