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1. |
50 litres of mixture of alcohol and water is in the ratio of 1 : 4 respectively. If 10 litres of mixture is taken off and replaced with 10 litres of water. Then what is the new ratio of alcohol and water respectively? |
A. | 1 : 4 |
B. | 2 : 11 |
C. | 1 : 5 |
D. | 4 : 21 |
Answer» E. | |