解答
The sum of the ages of John and Mary is 32. Four years ago, John was twice as old as Mary.
解答
求解步骤
Translate the problem into an equation:
求解
找到 age
流行的例子
The sum of the ages of a father and son is 56. Four years ago, the father was 3 times as old as the son.The sum of Jill and Aaron's age is 60. In three years, Jill will be twice as old Aaron . How old is Jill now?James is 7 years older than Laurel. James will be 2 times as old as Laurel next year. How old is Laurel?A pitcher is 30 years old, and a vase is 22 years old. How many years ago was the pitcher twice as old as the vase?A man is 36 years old and his daughter is 3. In how many years will the man be 4 times as old as his daughter?