Question
128 litres of mixture βAβ (milk + water) contains 32
litres more water than milk. If 25% of mixture βAβ, 70 litres of milk and 80 litres of water are added in an empty jar, then the quantity of milk is what percentage of the quantity of water in the jar?Solution
Let the quantity of milk in mixture βAβ = βyβ litres Then, quantity of water in mixture βAβ = (y + 32) litres So, y + y + 32 = 128 Or, 2y = 128 β 32 = 96 Or, y = 96/2 = 48 So, quantity of milk in mixture βAβ = 48 litres And, quantity of water in mixture βAβ = 48 + 32 = 80 litres Quantity of milk in 25% of mixture βAβ = 48 Γ 0.25 = 12 litres Quantity of water in 25% of mixture βAβ = 80 Γ 0.25 = 20 litres So, quantity of milk in the jar = 12 + 70 = 82 litres Quantity of water in the jar = 80 + 20 = 100 litres So, required percentage = (82/100) Γ 100 = 82%
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 girlβs 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...
βAβ is 7 years younger than βBβ and 6 years elder than βCβ. If the present age of βBβ and βDβ 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...