Q is an much younger than R as he is older than T. If the sum of the ages of R and T is 50 years,what is definitely the difference between R and Q's age ?
Select.
A) 15 years	B) 25 years	C) 2 years	D) 1 year	E) cannot be determined.
R-Q=R-T   Q=T. also, R+T=50   R+Q=50.   so,(R-Q) cannot be determined.   Answer is cannot be determined.
<result>E</result>
Q is an much younger than R as he is older than T. If the sum of the ages of R and T is 50 years,what is definitely the difference between R and Q's age ?