en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

Mr. Reyes is 4 times as old as his son. In 20 years, Mr. Reyes will be twice as old as his son. Find their present age.

Solution

Mr. Reyes is 4 times as old as his son. In 20 years, Mr. Reyes will be twice as old as his son. Find their present age.

Solution

Son^{'} s age is : 10

Reyes^{'} s age is : 40

Solution steps

Translate the problem into an equation:

4 x + 20 = 2 (x + 20)

Solve for

x, 4 x + 20 = 2 (x + 20) : x = 10

Find age

Son^{'} s age is : 10

Reyes^{'} s age is : 40

Popular Examples

the sum of 3 consecutive integers is 132.find the integers The diameter of a circle is 12 ft. Find the circumference The product of two consecutive odd integers is 255. Find the integers.3 times the difference between a number and 3 is equal to 15 find the diameter of a circle with an area 16pi square millimeter