Question: 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.
Answer: If the number of salmons in the river increased by ten times the number initially there, then 500 * 10 = 5000 new salmons migrated up the river. The total number of salmon in the river now is 5000 + 500 = 5500. The answer is 5500.

Question: Every year, four clowns and thirty children go on a carousel. This year, the candy seller, at the carousel, had 700 candies. The candy seller then sold 20 candies, to each of the clowns and the children, who attended. How many candies did he have left?
Answer: Since there are four clowns at the carousel this year, the candy seller sold 20 * 4 = 80 candies to all the clowns. The thirty children also bought 20 * 30 = 600 candies in total. Altogether, the candy seller sold 600 + 80 = 680 candies to the clowns and children at the carousel. The number of candies the candy seller has left is 700 - 680 = 20. The answer is 20.

Question: Maya's organization hosted a weekly farmers' market to raise money for the church choir. They sold broccolis, carrots, spinach, and cauliflowers. After adding together all of their earnings, Maya found out that they had made $380. The organization made $57 from broccoli and the sales of the carrots are twice as much as the sales of broccoli. Then, their sales for the spinach is $16 more than half of the sales of carrots. How much did they make from cauliflower sales?
Answer: The sales of the carrot is 57 x 2 = $114. Half the sales of carrot is $114 / 2 = $57. So, the sales of the spinach is $57 + $16 = 73. The total sales of the broccolis, carrots, spinach is $57 + $114 + $73 = $244. They made $380 - $244 = $136 from cauliflower sales. The answer is 136.

Question: There were some snowflakes at first. It snowed an additional 4 snowflakes every 5 minutes. If there were 58 snowflakes after 1 hour, how many snowflakes were there at first?
Answer:
There are 60 / 5 = 12 5 - minute intervals in 1 hour. 12 * 4 = 48 snowflakes fell in 1 hour. There were 58 - 48 = 10 snowflakes at first. The answer is 10.