John started weightlifting when he was 16.  When he first started he could Clean & Jerk 80 kg and he could Snatch 50 kg.  He manages to double his clean and jerk and increase his snatch by 80%.  What is his new combined total lifting capacity?
His clean and jerk goes to 80*2=
<gadget id="calculator">80*2</gadget>
<output>160</output>
160 kg.
His snatch increases by 50*.8=
<gadget id="calculator">50*.8</gadget>
<output>40</output>
40 kg.
So his snatch is now 50+40=
<gadget id="calculator">50+40</gadget>
<output>90</output>
90 kg.
So his total is 160+90=
<gadget id="calculator">160+90</gadget>
<output>250</output>
250 kg.

<result>250</result>