Question 989926
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B=Bill's age; E=Eric's age=B+15yrs
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B+E=37years
B+(B+15yrs)=37yrs
2B=22yrs
B=11yrs
ANSWER 1: Bill is 11 years old.
E=B+15yrs=11yrs+15yrs=26yrs
ANSWER 2: Eric is 26 years old.