Q: Biff and Kenneth decide to compete in a 500-yard rowboat race. If Biff rows at a speed of 50 yards per minute and Kenneth rows at a speed of 51 yards per minute, how many yards past the finish line will Kenneth be when Biff crosses the finish line?
A: Traveling at 50 yards per minute, Biff can travel 500 yards in 500 / 50 = 10 minutes. In 10 minutes, traveling at 51 yards per minute, Kenneth can travel 10 * 51 = 510 yards. Thus, Kenneth will be 510 - 500 = 10 yards past the finish line when Biff crosses the finish line. The answer is 10.
Question: In 7 years, Kaylee will be 3 times as old as Matt is now. If Matt is currently 5 years old, how old is Kaylee now?
Answer: In 7 years, Kaylee will be 5 * 3 = 15 years old. Let x be the age Kaylee is now. After 7 years, Kaylle will be 15 years old, so x + 7 = 15. x = 15 - 7. x = 8 years old. The answer is 8.
[Question]Johnny buys 15 packs of colored pencils for his class. Each pack has a red, yellow, and green pencil inside. When he gets home he notices that 3 of the packs have two extra red pencils inside. How many red colored pencils did Johnny buy?
[Answer]Johnny bought 15 packs, and every normal pack has 1 red pencil. He should have 15 * 1 = 15 red pencils. 3 of the packs have 2 extra red colored pencils, so there are 3 * 2 = 6 extra red pencils. In total, Johnny has 15 + 6 = 21 red colored pencils. The answer is 21.
Q: Erica sees 9 butterflies in the garden. She sees one-third of them fly away. How many butterflies are left in the garden?
A: Erica sees 9 / 3 = 3 butterflies fly away. There are 9 - 3 = 6 butterflies still left in the garden. The answer is 6.
Question: Kimmie received $450 from her handmade crafts at the supermarket. Her friend Zahra received 1/3 less money when she sold the same amount of handmade crafts at Etsy. If both of them save half of their earnings on the same savings account, calculate the total amount of money in the joint savings account?
Answer: Zahra received 1 / 3 * $450 = $150 less money from the sale of her craft at Etsy. The total amount of money that Zahra sold her handmade crafts for is $450 - $150 = $300. Kimmie saved 1 / 2 * $450 = $225 of her earnings into the joint savings account. Zahra saved 1 / 2 * $300 = $150 of her earnings into the joint savings account. Together, they have $225 + $150 = $375 in the savings account. The answer is 375.
Q: Henri has 8 hours to watch movies and read. He watches one movie that is 3.5 hours and one movie that is 1.5 hours. He then decides to read. If he can read 10 words a minute, how many words does he read before his free time is up?
A:
He has 3 hours to read because 8 - 3.5 - 1.5 = 3. He has 180 minutes to read because 3 x 60 = 180. He can read 1,800 words because 180 x 10 = 1,800. The answer is 1800.