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Phổ biến Word Problems >

Maria’s mother is now four times as old as Maria. In five years she will be three times as old as Maria. What are their ages now?

Lời Giải

M a r ia ’ s m o t h er i s n o w f o u r t im es a s o l d a s M a r ia . I n f i v e ye a rs s h e w i ll b e t h ree t im es a s o l d a s M a r ia . Wha t a re t h e i r a g es n o w ?

Lời Giải

Maria^{'} s age is : 10

Mother^{'} s age is : 40

Các bước giải pháp

Translate the problem into an equation:

4 x + 5 = 3 (x + 5)

Giải

x, 4 x + 5 = 3 (x + 5) : x = 10

Tìm age

Maria^{'} s age is : 10

Mother^{'} s age is : 40

Ví dụ phổ biến

Tony is 8 years older than Kyle. The sum of their ages was 32 three years ago. What is Kyle's current age?Fred is 4 years older than Barney. Five years ago, the sum of their ages was 48.Kristen is 17 years old. She is 3 years older than half the age of Dorinda. How old is Dorinda?Rebecca is 29. She is 10 years older than Sam. How old is Sam?Tyson is y years old and his brother, Ted, is three years younger. In three years' time they will be a total of 33 years old.What age is Tyson now?