Question
Present age of βMβ is 25% more than that of βNβ.
4 years ago, βMβ was 1.5 times as old as βNβ. What is the present age of βNβ?Solution
Let the present age of βNβ be βxβ years
Therefore, present age of βMβ = 1.25x years
ATQ;
(1.25x β 4) = 1.5 Γ (x β 4)
Or, 1.25x β 4 = 1.5x β 6
Or, 2 = 0.25x
Or, x = 8
Therefore, present age of βNβ = 8 years
'F' distributed sweets among his four children and retained some for himself. The three eldest girls received sweets in the ratio of 3:11:7. The total n...
Three Partners Chandra, Shekhar and Azad invested in the ratio of 3/2, 2/3, 4/3 in a business. After 3 months Chandra decreased his capital by 50%. If t...
A quantity x is directly proportional to another quantity y. When x = 56, then y = 28. When y = 45, then find the value of x.
Rs. 11200 was divided among A, B and C in the ratio 2:3:3. B kept Rs. 1000 for himself, gave Rs. 600 to his mother and divided the remaining money among...
If 'Q' is the smallest prime number, then find the fourth proportion of (Q + 6), (Q + 2) and (Q + 10).
Marks scored by A and B in a test are in the ratio 13:4 respectively. If B had scored 6 more marks, then marks scored by A would be 30% more than that o...
In a class, the ratio of number of boys to number of girls is 6:5. If 1 boy joined the class and 5 girls left the class, then the ratio becomes 7:5. Fin...
In an office, the ratio of the number of males to number of females is 12:7. If 2 males joined the class and 8 females left the class, then the ratio of...
If 60% of a certain number is equal to 2/3rd of another number, what is the ratio between the numbers?
Determine the fourth proportional to the numbers 12, 7, and 36.