Cindy was 5 years old.  Her sister Jan was 2 years older than Cindy.  Their oldest sister Marcia was twice as old as Jan.  Greg was two years older than Marcia.  How old was Greg?
Jan was 2 years older than Cindy who was 5 so 2+5 = <<2+5=7>>7 years old
Marica was twice as old as Jan so 2*7 = <<2*7=14>>14 years old
Greg was 2 years older than Marcia who was 14 so 2+14 = <<2+14=16>>16 years old
#### 16