Question

john was twice bills age in year 2000. their combined in 2010 is 71. how old were john and bill in 2000

Answer 1

17 34 in 2000 In 2010 : 27 and 44=71

b=Bill age

2b=John age

b+10+2b+10=71

3b+20=71

3b=51

b=17

2x17=34