Three friends Riley, Sammy and Todd have a certain number of oranges in their possession.

It is known that:

(1) The number of oranges possessed by each of the three friends are two digit positive integers.

(2) The number of oranges possessed by Sammy is obtained by adding the two digits of the number of oranges possessed by Riley and summing the result with the original number of oranges in Riley's possession.

(3) The number of oranges possessed by Todd is obtained by reversing the digits corresponding to the number of oranges in Sammy's possession.

(4) The total number of oranges possessed by the three friends is 272.

Determine analytically the number of oranges possessed by each of the three friends.

t and s must be at least 173:

so only 98 and 89 or   97 and 79  qualify

 to satisfy cond.(2)   r has ti be 85

thus s=8+5+85=89

t=98

r=85  

CHECK: 85+89+98=272

Edited on March 22, 2007, 5:57 pm

Posted by Ady TZIDON on 2007-03-22 17:55:00