SOLUTION: Amy is 5 years younger than Ron. Four years later , Ron will be 2 times older than Amy. Find the actual age of Amy

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Question 1173879: Amy is 5 years younger than Ron. Four years later , Ron will be 2 times older than Amy. Find the actual age of Amy
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52792) About Me  (Show Source):
You can put this solution on YOUR website!
.

This form  "2 times older than"  is  PROHIBITED  in  Math problems formulations in English,

since it creates ambiguity  every time  as it is used in  Math problems.


Learn how to formulate  Math problems in English correctly,  reading relevant  Math textbooks.



Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
a=r-5

Four years "later":
system%28a%2B4%2Cand%2Cr-5%2B4%29
system%28a%2B4%2Cand%2Cr-1%29
Ron will be 2 times older than Amy.
?

That should mean, r-1=%28a%2B4%29%2B2%28a%2B4%29
r-1=3%28a%2B4%29
r-1=3a%2B12
r=3a%2B13
-
and if you substitute from the first equation of the original system,
a%2B5=3a%2B13
2a=5-13----------which makes NO sense.


Bad Problem Description