fr

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Populaire Word Problems >

Three years ago a mother was four times as old as her daughter. In nine years time the mother will be twice as old as her daughter. How old are they now?

Solution

T h ree ye a rs a g o a m o t h er w a s f o u r t im es a s o l d a s h er d a ug h t er . I n nin e ye a rs t im e t h e m o t h er w i ll b e tw i ce a s o l d a s h er d a ug h t er . Ho w o l d a re t h ey n o w ?

Solution

Mother^{'} s age is : 27

Daughter^{'} s age is : 9

étapes des solutions

Translate the problem into an equation:

x - 3 = 4 (y - 3), x + 9 = 2 (y + 9)

x - 3 = 4 (y - 3), x + 9 = 2 (y + 9) : x = 27, y = 9

Mother^{'} s age is : 27

Daughter^{'} s age is : 9

Exemples populaires

Kamal is saving up money to buy a car. Kamal puts 6,831.00 into an account which earns 6% interest, compounded monthly. How much will he have in the account after 2 years?If Audrey rides for 2 hours on a bicycle, what is her rate if she rides 10 miles?The diameter of a circle is 15 cm. Find the circonférence to the nearest to the nearest tenth.2 more than the product of 6 and a number x How long will it take for a \$7000 investment to grow to \$8344 at an annual rate of 4.8% , compounded monthly? Assume that no withdrawals are made.Do not round any intermediate computations, and round your answer to the nearest hundredth.