Question: Joe had 200 data points on his dataset. He then added 20% more data points to the dataset. If he reduced the data points by 1/4 of the total data points, calculate the total number of data points the dataset contains.
Answer: Step-by-step reasoning process: When Joe added 20% more data points to the dataset, the data points in the dataset increased by 20 / 100 * 200 = 40 data points. The total number of data points increased to 200 + 40 = 240. If he reduced the data points by 1 / 4 of the total data points, the data points reduced by 1 / 4 * 240 = 60. The total number of data points left in the dataset after Joe reduced the data points by 1 / 4 of the total data points is 240 - 60 = 180.
So the answer is 180.

Question: Aitana and Jayda went to Silverlake Flea market to buy some handmade crafts. Aitana spent 2/5 times more money than Jayda at the market. If Jayda spent $400, calculate the total amount of money they spent together.
Answer: Step-by-step reasoning process: If Jayda spent $400 at the market, Aitana spent 2 / 5 * 400 = $160 more on handmade crafts. Since Aitana spent $160 more than Jayda at the market, she spent $400 + $160 = $560. The total amount of money they spent together is $400 + $560 = $960.
So the answer is 960.

Question: There are 6 forks in the cutlery drawer. There are 9 more knives than forks, and there are twice as many spoons as knives and half as many teaspoons as forks. After 2 of each cutlery is added to the drawer, how many pieces of cutlery are there in all?
Answer: Step-by-step reasoning process: There are 6 + 9 = 15 knives. There are 15 x 2 = 30 spoons. There are 6 / 2 = 3 teaspoons. There are 6 + 15 + 30 + 3 = 54 pieces before adding more cutlery. 2 of each 4 types of cutlery are added, and therefore 2 x 4 = 8 pieces added. In total there are 54 + 8 = 62 pieces of cutlery in the drawer.
So the answer is 62.

Question: Two boys, Ben and Leo, are fond of playing marbles. Ben has 56 marbles, while Leo has 20 more marbles than Ben. They put the marbles in one jar. How many marbles in the jar?
Answer:
Step-by-step reasoning process: Leo has 56 + 20 = 76 marbles. Therefore, there are 56 + 76 = 132 marbles in the jar.
So the answer is 132.