Question: There are 350 trees in the park, 70% of which are pine trees. How many are not pine trees?
Answer: There are 350 x 70 / 100 = 245 pine trees. Therefore, 350 - 245 = 105 trees are not pine trees. The answer is 105.
[Question]A rancher has 340 head of cattle. He was about to sell them all for $204,000 when 172 of them fell sick and died. Because of the sickness, his customers lost confidence in his cattle, forcing him to lower his price by $150 per head. How much money would the devastated farmer lose if he sold the remaining cattle at the lowered price compared to the amount he would have made by selling them at the original price?
[Answer]The rancher would have sold his cattle for $204,000 / 340 = $600 per head. He was left with a remainder of 340 - 172 = 168 head of cattle. The lowered price is $600 - $150 = $450 per head. He would make $450 x 168 = $75,600 at the lowered price. He could have made $600 x 168 = $100,800 at the original price. He would lose $100,800 - $75,600 = $25,200. The answer is 25200.
Q: Mary only has 8 screws on hand and needs to buy 2 times more to fix her sink. When she is beginning repairs, she has to split the screws into four sections. How many are in each pile?
A: Mary originally had 8 screws, then went to buy twice more screws and ended up with 8 + (8 * 2) = 24 of them. She then split them into four piles of 24 / 4 = 6. The answer is 6.
Question: Leo and Ryan together have $48. Ryan owns 2/3 of the amount. Leo remembered that Ryan owed him $10 but he also owed Ryan $7. After the debts had been settled, how much money does Leo have?
Answer: Ryan owns $48 x 2 / 3 = $32 of the $48. While Leo owns $48 - $32 = $16 of the $48. Leo had $16 + $10 = $26 after Ryan paid him $10. But since he owed Ryan $7, then Leo has $26 - $7 = $19. The answer is 19.
[Question]Edmund is buying a new computer and needs to save up $75 before he has enough. He convinces his parents to pay him for extra chores. He normally has to do 12 chores a week. His parents agree to pay him $2 for every extra chore he does during the week. If he does 4 chores a day for two weeks, how much does he earn?
[Answer]In two weeks, he has to do 24 chores because 2 x 12 = 24. He now does 28 chores a week because 7 x 4 = 28. He does 56 chores in two weeks because 2 x 28 = 56. He has done 32 extra chores because 56 - 24 = 32. He earns $64 because 2 x 32 = 64. The answer is 64.
[Question]Jason is making a salad. The lettuce has 30 calories, the cucumber has 80 calories, and the 12 croutons have 20 calories each. How many calories are in the salad?
[Answer]
In total, the 12 croutons have 20 calories / crouton * 12 croutons = 240 calories. Together, the croutons, lettuce and cucumber have 240 + 30 + 80 = 350 calories. The answer is 350.