Q: Anne is 2 times as tall as her sister while Bella is 3 times as tall as Anne. If Anne is 80cm tall, what is the height difference between Bella and Anne's sister?
A: Anne is 2 times as tall as her sister hence 2 * (her sister's height) = 80cm. Her sister's height = 80cm / 2 = 40cm. Bella is 3 times as tall as Anne hence Bella's height is 3 * 80 cm = 240 cm. The height difference between Bella and Anne's sister = 240 - 40 = 200cm. The answer is 200.
Question: A farmer is selling ducks and chickens at the market. He sells ducks for $10 and chickens for $8. He sells 5 chickens and some ducks. He then spends half his earnings on a new wheelbarrow. After buying it, someone sees it and agrees to pay the farmer double what the farmer paid and the farmer earns another $60. How many ducks did the farmer sell?
Answer: The wheelbarrow cost $30 because 60 / 2 = 30. The farmer earned $60 from selling fowl because 30 / (1 / 2) = 60. The farmer earned $40 selling chickens because 5 x 8 = 40. The farmer earned $20 selling ducks because 60 - 40 = 20. The farmer sold 2 ducks because 20 / 10 = 2. The answer is 2.
[Question]Carmen is counting the cars that pass by her window. All the cars are either white, black, or red. She sees 50 trucks and 40 cars. Half the trucks are red, and another 20% are black. If she picks one car at random, what is the percentage chance it's a white truck, rounded to the nearest integer?
[Answer]First find the total number of vehicles Carmen counted: 50 trucks + 40 cars = 90 vehicles. Then find the number of trucks that were red: 50 trucks / 2 = 25 trucks. Then find the number of trucks that were black: 50 trucks * .2 = 10 trucks. Then subtract the red and black trucks from the total number of trucks to find the number of white trucks: 50 trucks - 25 trucks - 10 trucks = 15 trucks. Then divide the number of white trucks by the number of vehicles and multiply by 100% to find the percentage of vehicles that are white trucks: 15 trucks / 90 vehicles * 100% = 16.66...%, which rounds up to 17%. The answer is 17.
Q: A porcelain vase was originally priced at $200 but went on sale for 25% off. If Donna bought the porcelain vase and paid 10% sales tax, how much did she pay in total?
A: Donna got $200 x 25 / 100 = $50 less for the porcelain vase. So, the porcelain vase is now $200 - $50 = $150. Donna has to pay $150 x 10 / 100 = $15 for the sales tax. Therefore, she paid $150 + $15 = $165 in total. The answer is 165.
Question: On Tuesday, a fruit vendor sold 2.5 dozen lemons and 5 dozens avocados. What is the total number of fruits that the fruit vendor sold?
Answer: Since 1 dozen is equal to 12, then the vendor sold 2.5 x 12 = 30 lemons. While he sold 5 x 12 = 60 avocados. So, the fruit vendor sold a total of 30 + 60 = 90 fruits. The answer is 90.
Q: A company has 200 employees. 60% of the employees drive to work. Of the employees who don't drive to work, half take public transportation. How many more employees drive to work than take public transportation?
A:
Drive to work:200(.60) = 120. Don't Drive to work:200 - 120 = 80. Public Transportation:80(.50) = 40 employees. 80 - 40 = 40 employees. The answer is 40.