Ben bought a lawnmower for his garden. He paid $100 for it. After six months, the value of the mower dropped by about 25%. Over the next year, the value of the mower dropped another 20% in value. How much is Ben's lawnmower worth after this time?
The first value drop of the lawnmower was 25/100 * 100 = $
<gadget id="calculator">25/100*100</gadget>
<output>25</output>
25.
So the lawnmower was worth 100 - 25 = $
<gadget id="calculator">100-25</gadget>
<output>75</output>
75.
Over the next year, the value dropped another 20%, which is 20/100 * 75 = $
<gadget id="calculator">20/100*75</gadget>
<output>15</output>
15.
So after all this time, Ben's lawnmower is worth 75 - 15 = $
<gadget id="calculator">75-15</gadget>
<output>60</output>
60.

<result>60</result>