Zara bought 24 cows, 7 sheep, and some goats. Next week, she will transport all of them to a new farm in 3 equally-sized groups of 48 animals per group. How many goats does she own? Give the rationale and then the answer.
Let's think step by step. Zara will transport a total of 3 * 48 = 144 animals. The known number of animals is 24 + 7 = 31 cows and sheep. Zara therefore has 144 - 31 = 113 goats.. The answer is: 113.

Aaron is gathering can lids to take to the recycling center. He uses 3 equal-sized boxes of canned tomatoes and adds the lids he gets to the 14 can lids he already has. He is now taking 53 can lids to the recycling center. How many cans lids did he get from each box? Give the rationale and then the answer.
Let's think step by step. Calculating the difference between the can lids Aaron has now and the amount that he had initially shows there were 53 – 14 = 39 can lids in the boxes of canned tomatoes. As the boxes are the same size, splitting these can lids equally shows that there were 39 / 3 = 13 can lids in each box.. The answer is: 13.

Adam’s wardrobe is too crowded so he decides to donate some of his clothes to a charity shop. He takes out 4 pairs of pants, 4 jumpers, 4 pajama sets (top and bottom), and 20 t-shirts, then asks his friends if they have anything they want to donate. 3 of his friends donate the same amount of clothing as Adam each. Then he takes another look over his clothing and decides that he actually wants to keep half of his clothes. How many articles of clothing are being donated in total? Give the rationale and then the answer.
Let's think step by step. As pajama sets are made up of a top and a bottom, there are 4 pajama sets * 2 = 8 articles of clothing from Adam's donation. In total, Adam is donating 4 pairs of pants + 4 jumpers + 8 pajama pieces + 20 t - shirts = 36 articles of clothing. Together, the 3 friends donate a total of 36 articles of clothing per friend * 3 friends = 108 articles of clothing. Adam changes his mind and takes back half, which means he is now actually donating 36 / 2 = 18 articles of clothing. There is therefore now a total of 108 + 18 = 126 articles of clothing being donated.. The answer is: 126.