| In a mixture of 25 L, the ratio of acid to water is 4: 1. Another 3 L of water is added to the mixture. The ratio of acid to water in the new mixture is [SSC (CPO) 2011] |
A) 5 : 2
B) 2 : 5
C) 3 : 5
D) 5 : 3
Correct Answer: A
Solution :
| Given, acid : water» 4:1, Total mixture = 25 L |
| Now, in 25 L of mixture, |
| Acid \[=\frac{4}{5}\times 25=20\,\,\text{L}\] and Water = 5 L |
| After the addition of 3 L of water. |
| \[\therefore \]New ratio \[=20:8=5:2\] |
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