Answer the following question.
John buys 2 packs of index cards for all his students. He has 6 classes and 30 students in each class. How many packs did he buy?
Step-by-step reasoning process: John has 6 * 30 = 180 students. So he bought 180 * 2 = 360 packs.
The answer is 360.

Answer the following question.
The state of Virginia had 3.79 inches of rain in March, 4.5 inches of rain in April, 3.95 inches of rain in May, 3.09 inches of rain in June and 4.67 inches in July. What is the average rainfall amount, in inches, in Virginia?
Step-by-step reasoning process: It rained for a total of 3.79 + 4.5 + 3.95 + 3.09 + 4.67 = 20 inches. The rain period is from March through July for a total of 5 months so the average rainfall is 20 / 5 = 4 inches of rain per month.
The answer is 4.

Answer the following question.
Autumn was constantly misplacing her pencils. At the start of the school year, she purchased a pack of 20 pencils. In the first month of school, she misplaced 7 pencils, broke 3 pencils and had to throw them away, she found 4, and bought 2. How many pencils did Autumn have left?
Step-by-step reasoning process: Autumn misplaced 7 and broke 3, so that lost her 7 + 3 = 10 pencils. Autumn found 4 pencils and bought 2, so she gained 4 + 2 = 6 pencils. She started with 20 pencils, lost 10 and gained 6 so she had 20 - 10 + 6 = 16 pencils left.
The answer is 16.

Answer the following question.
A basketball team played 40 games and won 70% of the games. It still had 10 games to play. How many games can they lose to win 60% of their games?
Step-by-step reasoning process: The team has won 40 x 70 / 100 = 28 games out of 40. There a total of 40 + 10 = 50 games to be played. The team has to win a total of is 50 x 60 / 100 = 30 games. So, it still needs to win 30 - 28 = 2 more games. Hence, they can still lose 10 - 2 = 8 games.
The answer is 8.