Question: A 10 meters yarn was cut into 5 equal parts. If 3 parts were used for crocheting, how long was used for crocheting?
Answer with step-by-step thinking: Each part is 10 / 5 = 2 meters long. Therefore, 2 x 3 = 6 meters of yarn were used for crocheting.
So the answer is 6.


Question: A mother buys a box of sweets. She kept 1/3 of the sweets and divided the rest between her 3 children. The eldest got 8 sweets while the youngest got half as many. If there are 27 pieces of sweets in the box, how many sweets did the second child gets?
Answer with step-by-step thinking: The mother kept 27 x 1 / 3 = 9 pieces of sweets. So there were 27 - 9 = 18 sweets that were divided between the 3 children. The youngest child got 8 / 2 = 4 sweets. So the eldest and the youngest got a total of 8 + 4 = 12 sweets. Therefore, the second child gets 18 - 12 = 6 sweets.
So the answer is 6.


Question: Every week of last month Paul tried out a new cake recipe. The first week, he followed a cake recipe that called for 24 cups of sugar. Each week after that, he reduced the amount of sugar by half. How much sugar did he use for the cake on the fourth week?
Answer with step-by-step thinking:
On the 2nd week, Paul halved the first week's sugar, therefore he used 24 / 2 = 12 cups. The third week, Paul used 12 / 2 = 6 cups. The fourth week, he used 6 / 2 = 3 cups.
So the answer is 3.