Question

In two vessels A and B, there is mixture of milk and water. The ratio of milk and water in these vessels is 5:2 and 8:5, respectively. In what ratio these mixtures be mixed together, so that the ratio of milk and water in the new mixture becomes 9:4?

• A. 7 : 2
  
• B. 2 : 7
  
• C. 3 : 5
  
• D. 5 : 3
  
• E. 7 : 9

Answer 1

The correct option is A 7 : 2


Here, we apply the rule of alligation,

$=\frac{1}{13}:\frac{65-63}{91}=\frac{1}{13}:\frac{2}{91}=7:2$
$\therefore$ Required ratio =7 : 2