100 liters of a mixture contains milk and water in the ratio 7:3. If 10 liters of this mixture be replaced by 10 liters of milk, the ratio of milk to water in the new mixture would be? Choose the correct option
A) 7:8
B) 8:3
C) 3:8
D) 8:7
E) 7:1
Quantity of milk in 100 liters if mix = 100*7/10= 
<gadget id="calculator">100*7/10</gadget>
<output>70</output>
70 liters   Quantity of milk in 110 liters of new mix= 80+10 = 80liters   Quantity of water in it = 110-80= 
<gadget id="calculator">110-80</gadget>
<output>30</output>
30 liters   Ratio of milk and water in new mix= 80:30 = 8:3   Answer is 8:3
<result>B</result>
100 liters of a mixture contains milk and water in the ratio 7:3. If 10 liters of this mixture be replaced by 10 liters of milk, the ratio of milk to water in the new mixture would be?