A play was held in an auditorium and its ticket costs $10. An auditorium has 20 rows and each row has 10 seats. If only 3/4 of the seats were sold, how much was earned from the play?
There are 20 x 10 = 
<gadget id="calculator">20*10</gadget>
<output>200</output>
200 seats in the auditorium.
Only 200 x 3/4 = 
<gadget id="calculator">200*3/4</gadget>
<output>150</output>
150 seats were sold.
Hence, the earnings from the play is $10 x 150 = $
<gadget id="calculator">10*150</gadget>
<output>1_500</output>
1500.

<result>1_500</result>