[Question]Brianna started out with a bag of 24 marbles. She lost four marbles through a hole in the bag. Then, she gave away twice as many marbles as she had lost through the hole in the bag. Finally, her dog ate half as many marbles as Brianna had lost through the hole in the bag. How many marbles did Brianna have remaining?
[Answer]Brianna gave away twice as many marbles as she had lost, or a total of 2 * 4 = 8 marbles. Her dog ate half as many marbles as Brianna had lost through the hole in the bag, or 4 / 2 = 2 marbles. If she started with 24 marbles, then the number of marbles remaining is 24 - 4 - 8 - 2 = 10 marbles. The answer is 10.
Q: Carter has a jar with 20 green M&Ms and 20 red M&Ms. He eats 12 of the green M&Ms, then his sister comes and eats half the red M&Ms and adds 14 yellow M&Ms. If Carter picks an M&M at random now, what is the percentage chance he'll get a green M&M?
A: First find the final number of green M&Ms by subtracting 12 from the starting number: 20 M&Ms - 12 M&Ms = 8 green M&Ms. Then find the final number of red M&Ms by dividing the starting number by half: 20 M&Ms / 2 = 10 red M&Ms. Then find the total number of M&Ms at the end by adding the number of red, green and yellow M&Ms: 8 M&Ms + 10 M&Ms + 14 M&Ms = 32 M&Ms. Then divide the number of green M&Ms by the total number of M&Ms and multiply by 100 to find the percentage chance Carter gets a green M&M: 8 M&Ms / 32 M&Ms * 100 = 25%. The answer is 25.
Question: At a station, a train comes every 5 minutes leaving 200 passengers and taking 320 others. How many different passengers step on and off a train at the station within an hour?
Answer: At every passenger exchange there are 200 + 320 = 520 different people. One hour is 60 minutes, so during one hour, a train comes 60 minutes / hour / 5 minutes / train = 12 times. So during one hour, 12 trains * 520 passengers / train = 6240 different passengers step on and off the train. The answer is 6240.
[Question]Holden's current master bedroom is 309 sq ft and his master bath is 150 sq ft. If he wants to add a home office/personal gym divided space that is twice as large as his bedroom and bathroom, how much sq ft will this new room have?
[Answer]His bedroom is 309 sq ft and his bathroom is 150 sq ft so these two rooms are 309 + 150 = 459 sq ft. He wants the new room to be twice as large as his bedroom / bathroom that is 459 sq so the new room is 2 * 459 = 918 sq ft. The answer is 918.
Q: Mitzi brought $75 to the amusement park. She spent $30 on a ticket, $13 on food, and $23 on a T-shirt. How much money does she have left?
A: Mitzi spent a total of $30 + $13 + $23 = $66. So she still has $75 - $66 = $9 left. The answer is 9.
Question: Tom rents a helicopter for 2 hours a day for 3 days. It cost $75 an hour to rent. How much did he pay?
Answer:
He rented the helicopter for 2 * 3 = 6 hours. So he paid 6 * 75 = $450. The answer is 450.