James and 4 of his friends volunteered to plant flowers. In 2 days, they were able to plant a total of 200 flowers. If each of them planted the same number of flowers, how many flowers did James plant in a day?
There were 1 + 4 = 
<gadget id="calculator">1+4</gadget>
<output>5</output>
5 of them who volunteered to plant flowers.
Each day, the 5 of them planted a total of 200/2 = 
<gadget id="calculator">200/2</gadget>
<output>100</output>
100 flowers.
Thus, James planted 100/5 = 
<gadget id="calculator">100/5</gadget>
<output>20</output>
20 flowers in a day.

<result>20</result>