###Human: The difference in the number of pens that Alice and Clara each have matches their age difference. Alice has 60 pens and Clara has 2/5 times as many pens as Alice. If Alice's age is 20 and Clara is older than Alice, calculate Clara's age in 5 years to come., ### Assistant: If Alice has 60 pens, Clara 2/5*60=24 pens.
The number of pens that Alice has more than Clara is 60-24=36
Since Alice is 20, and the number of pens that Alice has more than Clara is their age difference, Clara is 20+36=56 years old.
In five years, Clara's age will be 56+5=61 years. 
 So the answer is :  61