[Question]Mr. Salazar had seven dozen oranges. He reserved 1/4 of it for his friend and was able to sell 3/7 of the remaining yesterday. Today, he saw four rotten oranges. How many oranges are left to be sold today?
[Answer]Mr. Salazar had 7 x 12 = 84 oranges. He reserved 84 x 1 / 4 = 21 oranges for his friend. Ha had 84 - 21 = 63 oranges to be sold yesterday. But only 63 x 3 / 7 = 27 oranges were sold yesterday. So, he had 63 - 27 = 36 oranges left. Since four oranges are rotten, then only 36 - 4 = 32 oranges are left to be sold today. The answer is 32.

[Question]Tim sleeps 6 hours per day for 5 days a week and 10 hours a day for the other 2. How much total sleep does he get?
[Answer]He gets 6 * 5 = 30 hours of sleep on 5 days. He gets 10 * 2 = 20 hours the other days. So he got 30 + 20 = 50 hours. The answer is 50.

[Question]Nina enjoys keeping insects as pets. She has 3 spiders and 50 ants. Each spider has 8 eyes. Each ant has 2 eyes. How many eyes are there in total among Nina’s pet insects?
[Answer]The number of eyes from the spiders is 3 * 8 = 24 eyes. The number of eyes from the ants is 50 * 2 = 100 eyes. The total number of eyes among Nina’s insects is 24 + 100 = 124 eyes. The answer is 124.

[Question]Iris has a berry farm. Her brother and sister help her to pick up the berries and sell them to the market. Iris picked 30 blueberries, her sister picked 20 cranberries, and her brother was able to pick 10 raspberries. If 1/3 of the total berries they were able to pick are rotten and the remaining 1/2 of the fresh berries need to be kept, how many berries will they be able to sell?
[Answer]
Iris and his brother and sister were able to pick a total of 30 + 20 + 10 = 60 berries. The rotten berries that needed to be thrown away are (1 / 3) x 60 = 20. So, the total number of fresh berries is 60 - 20 = 40. The berries they need to keep are (1 / 2) x 40 = 20. Therefore, the total number of berries they will be able to sell is 40 - 20 = 20. The answer is 20.