Question: Martha spends 10 minutes turning the router off and on again, six times that long on hold with Comcast, and half as much time as she spent on hold yelling at a customer service representative. How much time did Martha spend on these activities total?
Answer with step-by-step thinking: First find the total time Martha spent on hold: 10 minutes * 6 = 60 minutes. Then find the time she spent yelling: 60 minutes / 2 = 30 minutes. Then add all the amount of time to find the total time: 60 minutes + 30 minutes + 10 minutes = 100 minutes.
So the answer is 100.


Question: Lily goes to the supermarket. She has $60. She needs to buy 6 items: celery, cereal, bread, milk, potatoes, and coffee. She finds a stalk of celery for $5, cereal for 50% off $12, bread for $8, and milk for 10% off $10. She finds potatoes for $1 each and buys 6. How many dollars does she have left to spend on coffee?
Answer with step-by-step thinking: Lily spends $5 + $8 = $13 on celery and bread. Lily spends $12 * (50 / 100) = $6 on cereal. Lily gets 10% off the milk, so she pays 100% - 10% = 90% of its original price. Lily spends $10 * 90% = $9 on milk. She spends $1 * 6 = $6 on potatoes. Thus, she has $60 - $13 - $6 - $9 - $6 = $26 left over for coffee.
So the answer is 26.


Question: Anna, Alison, and Jeff collect stamps. Anna had 37 stamps in her collection, Alison had 28 stamps in her collection, and Jeff had 31 stamps in his collection. Alison gave Anna half of her collection in exchange for a novel, and then Anna traded Jeff two bluebird stamps for one mountain stamp. How many stamps did Anna have in the end?
Answer with step-by-step thinking:
Alison gave Anna 1 / 2 * 28 = 28 / 2 = 14 stamps. Adding Alison’s stamps to Anna’s collection means Anna has 14 + 37 = 51 stamps. Then Anna traded Jeff 2 stamps, so she had 51 - 2 = 49 stamps. Anna got 1 stamp back in the trade, so she had 49 + 1 = 50 stamps in the end.
So the answer is 50.