A is 9 years older than B who is six times as old as C. The total of the ages of A, B and C is 139 years. What is the product of A and B ages ?
A = B + 9 B = 6C A + B + C = 139 (B + 9) + B + (B/6) = 139 B = 60 A = 69 C = 10
A × B = 60 × 69 = 4140.
A is 9 years older than B who is four times as old as C. The total of the ages of A, B and C is 49 years. What is the product of ages of A and C?
In 2017, A is 9 years older than B who is five times as old as C. The total of the ages of A, B and C is 97 years. What would be the average of A and C ages in the year 2024 ?
A is 4 years older than B who is three times as old as C. The total of the ages of A, B and C is 88 years. What is the average of A and C ages?
