Question
Present ages of 'X' and 'Y' are in ratio 7:8,
respectively. If twelve years hence from now, age of 'X' will be 15% less than that of 'Y', then find the ratio of present ages of 'X' and 'Z' given that 'Z' is 9 years older than 'X'.Solution
ATQ, Let the present ages of 'X' and 'Y' be '7x' years and '8x' years, respectively. So, (7x + 12) = (8x + 12) X 0.85 Or, 7x + 12 = 6.8x + 10.2 Or, 0.2x = 1.8 So, x = 9 So, present age of 'X' = 7x = 7 X 9 = 63 years And present age of 'Z' = 63 + 9 = 72 years So, required ratio = 63:72 = 7:8
A bag contains 10-paisa, 20-paisa and 50-paisa coins in the ratio of 8:9:10, respectively. If the total amount in the bag is Rs. 38, then find 80% of th...
- The ratio between Riya's income and expenditure is 5:3. If both income and expenditure rise by 60% and 40% respectively, find the percentage increase in he...
The total number of phones to the total number of laptops in Stores A and B is in the ratio 120:13. Additionally, the number of laptops in Store A to t...A total of Rs.71,000 was distributed among three individuals named Ashish, Bheem, and Chinu. The amount Ashish received compared to Bheem was in the rat...
In a garage, 80% of the vehicles are two-wheelers and the remaining are four-wheelers. Find the ratio of the number of wheels of two-wheelers to that of...
Gagan and Magan have their monthly incomes in the ratio of 9:7 while their monthly expenditures are in the ratio of 6:5, if they have saved Rs. 23,400 a...
A solution contains alcohol and water in the ratio 3:2. If 15 liters of water is added to the solution, the ratio becomes 3:5. What was the initial volu...
- A sum of money is divided between Arvind and Manish in a 2:3 ratio. If the total amount distributed had been increased by 10%, Arvind’s share would have ...
 If a student distributes sweets in the ratio of 1/2:1/3:1/4:1/5:1/6 among five of his friends A, B, C, D and E, then the total number (minimum) of swe...
The sum of two numbers is 25 and their difference is 15. The ratio of the numbers is:
