During Arbor Day, the comrades of the greening team planted 900 small saplings on an average of 3 barren hills, and the saplings on each barren hill were planted in 6 rows. So how many saplings are planted in each row on average?
在植树节时，绿化队的同志把900棵小树苗平均栽到了3座荒山上，每座荒山上的树苗都栽成6行．那么平均每行栽了多少棵树苗？
<gadget id="calculator">900 / 3 / 6</gadget>
<output>50</output>

<result>50</result>