Q: The Science museum sells dinosaur models for $100 each. A certain school bought 2 models for the kindergarten library and also bought twice as many for the elementary library. Since the school bought more than 5 models, there was a 5% reduction in price for each model. How much did the school pay in all?
A: The school bought 2 x 2 = 4 dinosaur models for the elementary library. So the school bought a total of 2 + 4 = 6 models. The price of each model was reduced by $100 x 5 / 100 = $5. Thus, each model cost $100 - $5 = $95. Therefore, the school paid a total of $95 x 6 = $570. The answer is 570.
Question: There are 3 workers producing chairs in a furniture factory. Each of them produces 4 chairs an hour. As a group, they produce an additional chair every 6 hours. In total, how many chairs have been produced after 6 hours?
Answer: The workers produce a combined total of 3 workers * 4 hours = 12 chairs every hour. After 6 hours, they have therefore produced 12 * 6 = 72 chairs. Adding the additional chair means the total amount of chairs produced is 72 + 1 = 73 chairs. The answer is 73.
[Question]John buys 3 reels of 100m fishing line. He cuts it into 10m sections. How many sections does he get?
[Answer]He buys 3 * 100 = 300m. So he gets 300 / 10 = 30 sections. The answer is 30.
Q: Stephen ordered 2 large pizzas, both cut into 12 slices. He ate 25% of the pizza. His friend Pete ate 50% of the remaining pizza. How many slices are left over?
A: He ordered 2 pizzas, each cut into 12 slices so that’s 2 * 12 = 24 slices. Stephen ate 25% of the pizza so he ate .25 * 24 = 6 slices. That leaves 24 - 6 = 18 slices. 18 slices are left and Pete eats 50% of 18 slices so he eats 18 * .50 = 9 slices. If there were 18 slices and Pete ate 9 slices then there are 18 - 9 = 9 slices left over. The answer is 9.
Question: There are 30 fish in the tank. One third of them are blue, and half of the blue fish have spots. How many fish in the tank are blue, spotted fish?
Answer: There are 30 / 3 = 10 blue fish. There are 10 / 2 = 5 blue spotted fish. The answer is 5.
Q: There are many CDs in the store. The rock and roll CDs are $5 each, the pop CDs are $10 each, the dance CDs are $3 each, and the country CDs are $7 each. Julia wants to buy 4 of each, but she only has 75 dollars. How much money is she short?
A:
Rock and Roll CDs will be 5 * 4 = 20 dollars. Pop CDs will be 10 * 4 = 40 dollars. Dance CDs will be 3 * 4 = 12 dollars. Country CDs will be 7 * 4 = 28 dollars. In total Julia would need 20 + 40 + 12 + 28 = 100 dollars. Julia is short 100 - 75 = 25 dollars. The answer is 25.