Chenny bought 9 plates at $2 each. She also bought spoons at $1.50 each. How many spoons did Chenny buy if she paid a total of $24 for the plates and spoon? Give the rationale and then the answer.
Let's think step by step. The cost of 9 plates is $2 x 9 = $18. So, Chenny paid $24 - $18 = $6 for the spoons. Therefore, she bought $6 / $1.50 = 4 spoons.. The answer is: 4.

Michael ran a bakeshop and had to fill an order for 5 peach pies, 4 apple pies and 3 blueberry pies. Each pie recipe called for 3 pounds of fruit each. At the market, produce was on sale for $1.00 per pound for both blueberries and apples. The peaches each cost $2.00 per pound. How much will Michael spend at the market buying the fruit for his pie order? Give the rationale and then the answer.
Let's think step by step. Each pie needs 3 pounds of fruit so for 5 Peach pies, 3 * 5 = 15 pounds of fruit. 3 pounds of fruit for 4 apple pies is 3 * 4 = 12 pounds. 3 pounds of fruit for 3 blueberry pies is 3 * 3 = 9 pounds. He needs 12 pounds of apples and 9 pounds of blueberries so 12 + 9 = 21. 21 pounds of fruit at $1.00 per pound is 21 * 1 = $21.00. 15 pounds of peaches will cost $2.00 per pound so 15 * 2 = $30. The apple and blueberries will cost $21.00 and the peaches will cost $30 so 21 + 30 = $51.. The answer is: 51.

1,800 fish swim westward, 3,200 swim eastward, and 500 swim north. What is the number of fish left in the sea, if fishers catch 2/5 of the fish that swam eastward and 3/4 of the fish that swam westward? Give the rationale and then the answer.
Let's think step by step. When fishers caught 3 / 4 of the fish that swam westward, their total number reduced by 3 / 4 * 1800 fish = 1350. The total number of fish that remained from the total number that swam eastward is 1800 fish - 1350 fish = 450 fish. If fishers caught 2 / 5 of the fish that swam eastward, their total number reduced by 2 / 5 * 3200 fish = 1280 fish. 3200 fish - 1280 fish = 1920 fish remained in the sea from the number that swam westward. The total number of fish in the sea after fishers caught some is 500 of the number that went north + 450 of the fish that swam westward + 1920 of the fish that swam eastward = 2870 fish.. The answer is: 2870.