SOLUTION: Mr.Karikari is five times as old as Eric.In ten years time Mr Karikari will be thrice as old as Eric.What is their present ages.

Click here to see ALL problems on Age Word Problems

Question 1156131: Mr.Karikari is five times as old as Eric.In ten years time Mr Karikari will be thrice as old as Eric.What is their present ages.

Found 2 solutions by ankor@dixie-net.com, josmiceli:
Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website!
let e = Eric's present age
let k = K's present age
Write an equation for each statement
:
Mr.Karikari is five times as old as Eric.
k = 5e
In ten years time Mr Karikari will be thrice as old as Eric.
k + 10 = 3(e+10)
distribute the 3
k + 10 = 3e + 30
k = 3e + 30 - 10
k = 3e + 20
replace k with 5e, from the 1st statement
5e = 3e + 20
5e - 3e + 20
2e = 20
e = 20/2
e = 10 yrs is Eric's age
then
5(10) = 50 yrs is K's age
:
:
Confirm solutions in the statement
"In ten years time Mr Karikari will be thrice as old as Eric"
50 + 10 = 3(10+10)

Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website!
Let = Mr. K's age now
Let = Eric's age now
-----------------------------------
(1)
(2)
-----------------------------------
(2)
(2)
Plug (1) into (2)
(2)
(2)
(2)
and
(1)
(1)
(1)
--------------------
Mr. K is 50
Eric is 10
-------------
check:
In 10 yrs Mr. K is 60
In 10 yrs Eric is 20
60 is 3 times 20
OK