Q: Taro and Vlad play a video game competition together, earning 5 points for every win. After playing 30 rounds, Taro scored 4 points less than 3/5 of the total points scored. How many total points did Vlad score?
A: If they played 30 rounds, the total possible points from wins are 5 * 30 = 150 points. Scoring 3 / 5 of the total possible points earns you 3 / 5 * 150 points = 90 points. If Taro scored 4 points less than 3 / 5 of the total points, he scored 90 points - 4 points = 86 points. If the total points scored in the game is 150, then Vlad scored 150 points - 86 points = 64 points. The answer is 64.

Q: Each year Dani gets 4 pairs of two pants each as pay winning the best Amazon buyer of the season. If he initially had 50 pants, calculate the number of pants he'll have in 5 years.
A: Since he receives four pairs of pants every year, and a pair has two pants, he gets 4 * 2 = 8 pants every year. After five years, the total number of pants he'll receive is 5 * 8 = 40 pants. If he initially had 50 pants, he'll have a total of 50 + 40 = 90 pants in five years. The answer is 90.

Q: Clive opens a box full of different colored balls.  The box contains 6 blue balls, 4 red balls, 3 times as many green balls as blue ones and twice as many yellow ones as red ones.  How many balls are in the box Clive opens?
A:
There are 3 times as many green balls as blue balls so green balls = blue balls * 3. Green balls = 6 blue balls * 3 = 18 green balls. There are 2 times as many yellow balls as red ones so yellow balls = red balls * 2. Yellow balls = 4 red balls * 2 = 8 yellow balls. The total number of all the balls is 6 blue + 4 red + 18 green + 8 yellow: 6 + 4 + 18 + 8 = 36 balls. The answer is 36.