On Tuesday, Clara bought 20 pomegranates at $20 each. At the till she got $2 off because she had a voucher. The next day, the price shot to $30 per fruit, but the store also offered a 10% discount on the total cost. Sheila took advantage of the discount and bought 20 pomegranates. What is the difference between the final prices paid for the pomegranates on the two days?
On Tuesday, the pomegranates cost Clara 20 pomegranates * $20/pomegranates = $
<gadget id="calculator">20*20</gadget>
<output>400</output>
400.
Using the voucher, she paid $400 - $2 = $
<gadget id="calculator">400-2</gadget>
<output>398</output>
398.
On Wednesday, the pomegranates cost Sheila 20 pomegranates * $30 = $
<gadget id="calculator">20*30</gadget>
<output>600</output>
600.
She then got a discount of 10/100 * $600 = $
<gadget id="calculator">10/100*600</gadget>
<output>60</output>
60.
Sheila ended up paying $600 - $60 = $
<gadget id="calculator">600-60</gadget>
<output>540</output>
540.
The difference is therefore $540 - $398 = $
<gadget id="calculator">540-398</gadget>
<output>142</output>
142.

<result>142</result>