5. Anna is 13 years old. Her mother Annie is three times as old as Anna. How old will Annie be when Anna is three times as old as she is now?
A 13
B 26
C 39
D 52
E 65
5. E When Anna is 13 , Annie is $3 \times 13=39$ and so Annie is 26 years older than Anna. When Anna is three times as old as she is now, she will be 39 and Annie will still be 26 years older. Therefore Annie will be 65 .