Caroline is three times older than Ben. Ben is two times older than Chris. If Chris is 4, how old is Caroline?
Ben is 4*2 = 
<gadget id="calculator">4*2</gadget>
<output>8</output>
8 years old.
Caroline is 8*3 = 
<gadget id="calculator">8*3</gadget>
<output>24</output>
24 years old.

<result>24</result>