Frank's laundry detergent is double concentrated and will wash 80 loads of laundry.  His detergent is usually $25.00 a bottle but they're having a sale.  If he buys 2 bottles, both bottles will drop to $20.00 a bottle.  How much does he spend, in cents, per load of laundry, if he buys 2 bottles of detergent?
If he buys 2 bottles, the price drops to $20.00 per bottle so they cost 2*20 = $
<gadget id="calculator">2*20</gadget>
<output>40</output>
40.00.
He can get 80 loads of laundry per bottle and he bought 2 bottles so that's 80*2 = 
<gadget id="calculator">80*2</gadget>
<output>160</output>
160 loads of laundry.
The detergent cost $40.00 and he will be able to wash 160 loads of laundry so each load costs 40/160 = $
<gadget id="calculator">40/160</gadget>
<output>1/4 = around 0.25</output>
0.25.

<result>25</result>