Question
The average age of A and B is 3 years more than the average age of A and
C. If Bβs current age is 4/3 times Aβs age, and C is 2 years older than A, what is Aβs present age?
Solution
Given that,(A + B)/2 = [(A + C)/2] + 3........(1)Also given that,B = 4A/3And C = A + 2From equation (1):[A + (4A/3)]/2 = [(A + A + 2)/2] + 37A/6 = A + 4(7A/6) - A = 4A = 24 years
More Average Questions
- P, Q, R, S and T are five persons. The weight of P, Q and R is 80%, 102% and 84% respectively of the average weight of all five. The ratio of weight of S a...
- The average age of a category of 5 members is 40 years. If a person whose age is 60 years will left the group and two new persons whose age is 'a' years an...
- The average of 8 consecutive odd numbers is 20. If the odd numbers immediately before and after this sequence of 8 odd numbers are also included, what will...
- In a class of ‘x’ students, if a new student weighing 32 kg joins the class, then the average weight of the class increases by 1 kg. If the new...
- The average age of A and B is 19 years. If A is to be replaced by C, the average would be 18 years. The average age of C and A is 20 years. Find the age of...
- A set contains ten numbers. The average of the first six numbers is (x β 4), and the average of the last three numbers is (x + 2). The average of the entir...
- The average weight of a group of 30 employees is 65 kg. If an additional five employees, each with an average weight of 72 kg, are added to the group, what...
- The average marks of Karan in 5 different papers was calculated as 73. But it was later found that his marks in two subjects were wrongly entered as 80 and...
- The average of 18 numbers is 36. If 4 is added to each number, then the new average will be:
- The average of 8 numbers is 22. When two new numbers 'p' and 'q' are added, the average increases by 3. If p - q = 10, find the value of q.