Because of the migration of salmon, the total number of salmon in river Trout has increased by ten times the number initially in the river. If there were 500 salmons initially, calculate the total number of fish in the river now.
If the number of salmons in the river increased by ten times the number initially there, then 500*10 = <<500*10=5000>>5000 new salmons migrated up the river.
The total number of salmon in the river now is 5000+500 = <<5000+500=5500>>5500
#### 5500