SOLUTION: 3 years ago, Rica was thrice as old as Dandy. 3 years hence, she will be twice as old. Find their present ages.

Algebra.Com
Question 339803: 3 years ago, Rica was thrice as old as Dandy. 3 years hence, she will be twice as old. Find their present ages.
Answer by mananth(16946)   (Show Source): You can put this solution on YOUR website!

3 years ago
Let Dandy be x years
Rica will be 3x
..
3 years later
Dandy will be x+6
Rica will be 3x+3
..
3x+6=2(x+6)
3x+6 =2x+12
3x-2x=12-6
x=6 Dandy's age 3 years ago. so she will be 9 years now.
Rica will be 3x+3 = 3*6+3= 21 years

RELATED QUESTIONS

three years ago, Rica was thrice as old as Dandy. Three years hence, she will be twice as (answered by sachi)
Three years ago, Rica was thrice as old as Dandy. Three years hence, she will be twice as (answered by josgarithmetic)
Three years ago, Rica was thrice as old as Dandy. Three years hence, she will be twice as (answered by josgarithmetic)
Three years ago, Rica was thrice old as Dandy. Three years hence, she will be twice as... (answered by Paul)
three years ago,Rica was thrice as old as Dandy. three years hence, she will be twice as... (answered by swincher4391)
Can you please help me solve this problem: Three years ago, Rica was thrice as old as... (answered by stanbon)
Solving problems involving systems of linear equations in two variables: three years... (answered by Fombitz)
Three years ago, Rica was thrice as old as Danda. Three years hence, she will be twice as (answered by richwmiller)
Two years ago, Lolita was thrice as old as Miraflor. Four years hence Lolita will be... (answered by stanbon)