- Have any questions?
- [email protected]
- Home
- A mixture contains milk and water in the ratio 2 : 3 and the other contains them in the ratio 3 : 1 respectively.
Question 1:
A mixture contains milk and water in the ratio 2 : 3 and the other contains them in the ratio 3 : 1 respectively.What weight of 2nd mixture must be taken so as to make a third mixture 7 litres in weight with 70% milk?
A. 1 litres
B. 4 litres
C. 6 litres
Feedback 70/100 = 7/10
Milk in first = 2/(2+3) = 2/5, milk in second = 3/(3+1) = 3/4
By method of allegation:
2/5.......................3/4
................7/10................
3/4 – 7/10......................7/10 – 2/5
1/20 : 3/10
1 : 6
So in 3rd mixture, 2nd mixture is [6/(1+6)] * 7 = 6 litres
Milk in first = 2/(2+3) = 2/5, milk in second = 3/(3+1) = 3/4
By method of allegation:
2/5.......................3/4
................7/10................
3/4 – 7/10......................7/10 – 2/5
1/20 : 3/10
1 : 6
So in 3rd mixture, 2nd mixture is [6/(1+6)] * 7 = 6 litres
D. 9 litres
These questions are from this test. Would you like to take a practice test?