[Question]A store sold a certain brand of jeans for $40. They only have few pairs of jeans left so they decided to give 10% discount on every two pairs of jeans bought by a customer at any one time. How much will a customer pay for 3 pairs of jeans?
[Answer]Two pairs of jeans cost $40 x 2 = $80. A discount of $80 x 10 / 100 = $8 will be given for this. Hence, the cost of two pairs of jeans will now be $80 - $8 = $72. Therefore, the customer will pay $72 + $40 = $112 for the three pairs of jeans. The answer is 112.
Q: In a house of 15, 3/5 of the people eat pizza. If Aviana brought pizza with 50 pieces, and each person eating pizza took 4 pieces, calculate the number of pizza pieces that remained.
A: If there are 15 people in the house, the number of people eating pizza is 3 / 5 * 15 = 9 people. If each house member who eats pizza took four pieces to eat, the number of pieces taken is 4 * 9 = 36 pieces. Since the total number of pieces was 50, the number of pieces not taken is 50 - 36 = 14 pieces. The answer is 14.
Question: Michelle is bringing sandwiches to work to give to her co-workers. She gives 4 sandwiches to one of her co-workers and keeps twice this amount for herself. If she had originally made 20 sandwiches, how many sandwiches does she have left to give to her other co-workers?
Answer: Michelle kept 4 sandwiches * 2 = 8 sandwiches for herself. This leaves 20 total sandwiches 4 sandwiches for a coworker 8 sandwiches for herself = 8 sandwiches for her other co - workers. The answer is 8.
[Question]Micah can type 20 words per minute and Isaiah can type 40 words per minute. How many more words can Isaiah type than Micah in an hour?
[Answer]There are 60 minutes in an hour. Micah can type 20 x 60 = 1200 words in an hour. Isaiah can type 40 x 60 = 2400 words in an hour. Isaiah can type 2400 - 1200 = 1200 words more than Micah in an hour. The answer is 1200.
Q: Bran's tuition fee is $90. He does a part-time job that pays him $15 per month and he has a scholarship that takes care of 30% of his tuition fee. If he needs to pay his tuition fee within 3 months, how much does Bran still need to pay?
A: Bran's scholarship pays $90 x 0.30 = $27 to his tuition fee. So, the total amount he still needs to pay is $90 - $27 = $63. And Bran will be able to earn $15 x 3 = $45 after working for 3 months. Therefore, the total amount he still needs to pay is $63 - $45 = $18. The answer is 18.
Question: The sewers in Middleton can handle 240,000 gallons of run-off. Each hour of rain produces 1000 gallons of runoff. How many days of rain can the sewers handle before they overflow?
Answer:
First find how many hours of runoff the sewers can handle: 240,000 / 1000 gallons / hour = 240 hours. Then divide that time by the number of hours per day to find how many days of rain the sewers can handle: 240 hours / 24 hours / day = 10 days. The answer is 10.