SOLUTION: Ross is twenty years older than his niece Krystal. Krystal has worked out that in five years' time her uncle will be twice as old as she will be. Find Krystal's age

Question 454947: Ross is twenty years older than his niece Krystal. Krystal has worked out that in five years' time her uncle will be twice as old as she will be. Find Krystal's age
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Ross is twenty years older than his niece Krystal. Krystal has worked out that in five years' time her uncle will be twice as old as she will be. Find Krystal's age
-------------------
Equations:
r = k+20
(r+5)= 2(k+5)
---
Substitute for "r" and solve for "K":
(k+25) = 2k + 10
k = 15 yrs (Krystal's age now)
==========================
Cheers,
Stan H.
RELATED QUESTIONS
a women is now 24 years older than her niece in 8 years she will be twice as old as her... (answered by TimothyLamb,MARIO OWHOLO)

Nine years ago, Sally's uncle was 2 times older than Sally was at that time. In... (answered by ewatrrr)

Five years from now, two times the age of Ms.Emmy will be eight years less than four... (answered by ankor@dixie-net.com)

Ross is 75% of his uncle's age and 3 times older than his nephew. If Ross's uncle is 50... (answered by Alan3354,ikleyn)

Joseph is four years older than twice his sister's age. In four years' time he will be... (answered by josmiceli)

Pl help out in this question Ross is going to be 4 years older than Sally next year.... (answered by solver91311)

A mother is 4 times as old as her son and in twenty years will be twice as old as her... (answered by ankor@dixie-net.com)

Jenny is three times as old as her daughter Krystal. Four years ago she was four times as (answered by rm29924)

Omar and Krystal have a new grandson. How much money should they invest now so that he... (answered by MathTherapy)