解答
解答
求解步骤
Translate the problem into an equation:
求解
流行的例子
George is twice as old as Jack. Jack is twice as old as Alex. The sum of their ages is 147Kwabena's age is twice Araba's age. The sum of their ages is 18 ,Sam is 7 years old and Anoushka is 18 years old. In how many years will Anoushka be twice as old as Sam?Gollum's age is 50 less than 5 times Bilbo's age. If Gollum is 595 years old, how old is Bilbo?Five years ago, Nina was twice as old as Sam. In five years, she will be 1.5 times as old as Sam. How old are Nina and Sam now?