Question
Two mixtures, X and Y, have milk-to-fruit juice ratios of
4:5 and 7:8, respectively. When these two mixtures are combined, the total quantity of the final mixture becomes 1.5 liters, with the milk-to-fruit juice ratio in the final mixture being 37:23. What was the original quantity of mixture X before mixing?Solution
ATQ;
Let quantity of milk and fruit juice in mixture X and Y be 4x ml and 5x ml and 7y ml and 8y ml, respectively.
Quantity of milk in 1500 ml of mixture = 37/60 × 1500 = 925 ml
Quantity of fruit juice in 1500 ml of mixture = 1500 – 925 = 575 ml
So, 4x + 7y = 925
And, 5x + 8y = 575
Solving the above equations, we get;
x = 50 and y = 60
So, quantity of mixture X = 50 × 9 = 450 ml
The ratio of A and B present age is 7:4. The product of their ages is 2800. What will be the ratio of their ages after 5 years?
The age of person A (y+3) years ago and the age of person B (y+4) years from now are in the ratio 2:3.
It is also given th...
A girl’s age is 160% of what it was 5 years ago, but 80% of what it will be after 6 years. What is her present age?
The current ages of Anita and Sunita are in a ratio of 3:4. If, four years from now, Sunita's age will be 20% greater than her current age, the question...
- Seven years ago, the age ratio of 'F' and 'G' was 2:3. In five years, their ages will be in the ratio 3:4. What is the current age of 'V' who is 2 years yo...
The current age of 'P' is 40% more than the current age of 'Q'. Seven years from now, the ratio of their ages will be 14:11. What...
15 years ago, the average age of all the 40 teachers of the college was 50 years. 8 years ago, the principal has retired from her post at the age of 60 ...
If 3 years is subtracted from the present age of R and the remainder is divided by 9, then the present age of his grandson A is obtained. If A is 4 yea...
‘A’ is 7 years younger than ‘B’ and 6 years elder than ‘C’. If the present age of ‘B’ and ‘D’ is 35 years and 24 years, respectively...
The total age of A, B and C six years hence will be 89 years. Find the age of C five years hence, if the present age of A and B is 33 years and 24 years...