vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

After 1 year the father age will be 4 times the age of his son. After 5 years the father age will be three times the age of his son. Find the age of the father and his son

Lời Giải

A f t er 1 ye a r t h e f a t h er a g e w i ll b e 4 t im es t h e a g e o f hi s so n . A f t er 5 ye a rs t h e f a t h er a g e w i ll b e t h ree t im es t h e a g e o f hi s so n . F in d t h e a g e o f t h e f a t h er an d hi s so n

Lời Giải

Father^{'} s age is : 31

Boy^{'} s age is : 7

Các bước giải pháp

Translate the problem into an equation:

x + 1 = 4 (y + 1), x + 5 = 3 (y + 5)

x + 1 = 4 (y + 1), x + 5 = 3 (y + 5) : x = 31, y = 7

Father^{'} s age is : 31

Boy^{'} s age is : 7

Ví dụ phổ biến

one more than the hiệu between a number and nineteen is three late the sentence into an equation.Two times the sum of a number and 7 is 8.Franco is twice as old as Marco. The sum of their ages is 5 times Marco's age less than 48. How old are they now?The diameter of a circle is 16 ft. Find its chu vi in terms of pipi.The sum of 8 times a number and7 is 6.