[Question]: Tommy is looking at his change collection. He has 10 more dimes than pennies. He has twice as many nickels as dimes. He has 4 quarters. He has 10 times as many pennies as quarters. How many nickels does he have?
[Answer]: Tommy has 40 pennies because 10 x 4 = 40. Tommy has 50 dimes because 40 + 10 = 50. Tommy has 100 nickels because 50 x 2 = 100.
So the answer is 100.

[Question]: Jasmine gets off of work at 4:00 pm. After that, it will take her 30 minutes to commute home, 30 minutes to grocery shop, 10 minutes to pick up the dry cleaning, 20 minutes to pick up the dog from the groomers and 90 minutes to cook dinner when she returns home. What time will she eat dinner?
[Answer]: Her errands include a 30 min commute and 30 min grocery shopping, 10 min for dry cleaning and 20 min to grab the dog for a total of 30 + 30 + 10 + 20 = 90 minutes. Her errands took 90 minutes and she has another 90 minutes of cooking for a total of 90 + 90 = 180 minutes of chores / errands. 60 minutes are in 1 hour and she has 180 minutes of work so that's 180 / 60 = 3 hours. She is off of work at 4:00 pm and has 3 hours of errands / chores so she won't be able to eat until 4 + 3 = 7:00 pm.
So the answer is 7.

[Question]: Tom invites his parents and 3 siblings to his house. They each eat 3 times a day. How many plates do Tom and his guests use while they are there for the 4 days if each person uses 2 plates per meal?
[Answer]:
There were 1 + 2 + 3 = 6 people at the house. That means they use 6 * 2 = 12 plates per meal. So they use 12 * 3 = 36 plates per day. That means they use 36 * 4 = 144 plates for the visit.
So the answer is 144.