Of the 100 soccer balls that Nova went to inflate, 40 percent had holes in them and could not inflate, while 20% of the remaining balls were overinflated and exploded. How many balls were inflated successfully and could be used?
If 40% of the balls had holes in them and could not inflate, their number was 40/100*100= 
<gadget id="calculator">40/100*100</gadget>
<output>40</output>
40.
The remaining balls that Nova could inflate were 100-40 = 
<gadget id="calculator">100-40</gadget>
<output>60</output>
60.
While inflating, 20% of the good soccer balls were overinflated and exploded up, a total of 20/100*60 = 
<gadget id="calculator">20/100*60</gadget>
<output>12</output>
12.
The number of soccer balls that inflated successfully and could be used is 60-12 = 
<gadget id="calculator">60-12</gadget>
<output>48</output>
48.

<result>48</result>