Question: To make 3 km, Ben walked for 2 hours. Continuing at the same speed, how much time in minutes would it take him to travel 12 km?
Answer: We have 12 km / 3 km = 4. So, the distance covered in 12 km is 4 times greater than 3 km. The time taken will also be 4 times greater. So, 2 hours x 4 = 8 hours. We convert the time to minutes: 8 hours * 60 minutes / hour = 480 minutes. The answer is 480.
[Question]Annie walked 5 blocks from her house to the bus stop. She rode the bus 7 blocks to the coffee shop. Later, she came home the same way. How many blocks did Annie travel in all?
[Answer]Annie traveled 5 + 7 = 12 blocks to the coffee shop. Her round trip would take 12 x 2 = 24 blocks. The answer is 24.
Q: Liz sold her car at 80% of what she originally paid. She uses the proceeds of that sale and needs only $4,000 to buy herself a new $30,000 car. How much cheaper is her new car versus what she originally paid for her old one?
A: If Liz needs only $4,000 to buy a new $30,000 car, that means she has $30,000 - $4,000 = $26,000 from the proceeds of selling her old car. If she sold her car at 80% of what she originally paid for and sold it for $26,000 then she originally paid $26,000 / 80% = $32,500 for her old car. If she paid $32,500 for her old car and the new one is $30,000 then, the new one is $32,500 - $30,000 = $2,500 cheaper. The answer is 2500.
Question: Stephanie is planning dinners to cook for the week and needs to figure out how much of each ingredient she should buy at the grocery store. She is making three recipes that call for lower sodium soy sauce as a main ingredient. One bottle of lower sodium soy sauce holds 16 ounces. There are 8 ounces in 1 cup. The first recipe Stephanie is going to cook calls for 2 cups of lower sodium soy sauce. The second recipe calls for 1 cup. The third recipe calls for 3 cups. If Stephanie can only buy 1 whole bottle of soy sauce no matter how much she needs exactly, how many bottles of lower sodium soy sauce should Stephanie buy to allow for all three recipes?
Answer: First, Stephanie needs to figure out how many cups of soy sauce she needs total, 2 cups + 1 cup + 3 cups = 6 cups total of lower sodium soy sauce. Then Stephanie needs to figure out how many ounces are in 6 cups of lower sodium soy sauce, 6 x 8 ounces each cup = 48 total ounces of lower sodium soy sauce. Next Stephanie needs to figure out how many bottles of soy sauce to purchase to get 48 ounces, where 1 bottle has 16 ounces, 48 / 16 = 3 bottles of lower sodium soy sauce. The answer is 3.
[Question]Papi Calot prepared his garden to plant potatoes. He planned to plant 7 rows of 18 plants each. But he still has a bit of room left, so he’s thinking about adding 15 additional potato plants. How many plants does Papi Calot have to buy?
[Answer]Let’s first calculate the number of plants that Papi had planned: 7 rows * 18 plants / row = 126 plants. Now let’s add the other plants: 126 plants + 15 plants = 141 plants. So Papi has to buy 141 plants. The answer is 141.
[Question]Penny has $20. Penny buys 4 pairs of socks for $2 a pair and a hat for $7. How much money does Penny have left?
[Answer]
Penny buys 4 pairs of socks for $2 x 4 = $8. In total, Penny spent $8 + $7 = $15 on 4 pairs of socks and a hat. Penny has $20 - $15 = $5 left after buying 4 pairs of socks and a hat. The answer is 5.