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.
If Alice has 60 pens, Clara 2/5*60=
<gadget id="calculator">24</gadget>
<output>24</output>
24 pens.
The number of pens that Alice has more than Clara is 60-24=
<gadget id="calculator">60-24</gadget>
<output>36</output>
36.
Since Alice is 20, and the number of pens that Alice has more than Clara is their age difference, Clara is 20+36=
<gadget id="calculator">20+36</gadget>
<output>56</output>
56 years old.
In five years, Clara's age will be 56+5=
<gadget id="calculator">56+5</gadget>
<output>61</output>
61 years.

<result>61</result>