Question
Bag A and Bag B contain balls in the ratio of 7:6, while
Bag B and Bag C have balls in the ratio of 2:3. If the average number of balls across all three bags is 22, determine the number of balls in Bag A.Solution
Let the number of balls in bag A, bag B and bag C be ‘7x’, ‘6x’ and ‘9x’ respectively.
7x + 6x + 9x = 22 × 3
22x = 22 × 3, x = 3
So, the number of balls in bag A = 7x = 21
The age of person X (x + 1) years ago and the age of person Y (x + 2) years from now are in the ratio 1:2.
Additionally, it is given that:
X i...The ratio of the ages of A, B and C, 5 years ago, was 4 : 5 : 7. The sum of their present ages is 135 years. What will be the sum of the ages (in years...
The ratio of the present ages of father and his son is 9:5. The product of their ages 3 years ago was 33 times of his son’s age that year. What wa...
Present average age of 4 friends: ‘A’, ‘B’, ‘C’ and ‘D’ is 40 years. If their ages are in the arithmetic progression in the same order a...
A’s age is the sixth part of his father’s age. After 8 years, the age of A’s father will be twice the age of B. If B’s 6th birth...
The present ages of 'Meena' and 'Tina' are in the ratio 7:9. Two years hence, Meena’s age will be 20% less than Tina’s age. What is Meena’s curren...
The ratio of the present ages of P and Q is 8:5 respectively. If the age of P 10 years hence from now will be 100% more than the age of Q 4 years ago fr...
A person’s present age is 4/5th of the age of his brother. After 10 years, he will be 9/10th of the age of his brother. How old is the brother at pr...
The present ages of a father and his son are such that 10 years ago, the father was 3 times as old as his son. Eight years from now, the father will be ...
In a classroom there are 13 boys and 11 girls. Average age of each boy and each girl is 23 years and 17 years respectively. The sum of ages of all the b...
