Q: Mark buys a loaf of bread for $4.20 and some cheese for $2.05. He gives the cashier $7.00. If the cashier only has 1 quarter and 1 dime in his till, plus a bunch of nickels, how many nickels does Mark get in his change?
A: First subtract the cost of Mark's groceries from the amount he gives the cashier to find how much he gets in change: $7.00 - $4.20 - $2.05 = $0.75. Then subtract the value of a quarter in cents (25) and the value of a dime in cents (10) from the change amount to find how much Mark gets paid in nickels: $0.75 - $0.25 - $0.10 = $0.40. Now divide the amount Mark gets in nickels by the value per nickel in cents (5) to find how many nickels Mark gets: $0.40 / $0.05 / nickel = 8 nickels. The answer is 8.
Question: Randy has 60 mango trees on his farm. He also has 5 less than half as many coconut trees as mango trees. How many trees does Randy have in all on his farm?
Answer: Half of the number of Randy's mango trees is 60 / 2 = 30 trees. So Randy has 30 - 5 = 25 coconut trees. Therefore, Randy has 60 + 25 = 85 treeson his farm. The answer is 85.
[Question]Hannah sold 40 pieces of cookies for $0.8 each and 30 cupcakes for $2 each. She used the money to buy 2 sets of measuring spoons for $6.5 each. How much money does she have left?
[Answer]Hannah's earnings from the cookies is 40 x $0.8 = $32. Her earnings from the cupcakes is 30 x $2 = $60. Her total earnings for the cupcakes and cookies is $32 + $60 = $92. The cost of 2 sets of measuring spoons is 2 x $6.5 = $13. So, Hannah has $92 - $13 = $79. The answer is 79.
Q: There are 336 books in a library. On Monday, 124 books are taken out. On Tuesday, 22 books are brought back. How many books are there now?
A: At the end of Monday, there are 336 - 124 = 212 books left. At the end of Tuesday, there are 212 + 22 = 234 books. The answer is 234.
Question: In a house, there are 16 cats. Two of them are white, and 25% of them are black. The rest of the cats are grey. How many grey cats are in this house?
Answer: In this house, there are 16 * 25 / 100 = 4 black cats. If there are two white cats, that means that there are 16 - 4 - 2 = 10 grey cats in this house. The answer is 10.
Q: If Katherine has 4 apples and 3 times as many pears in her fridge, how many bananas does she have if she has a total of 21 pieces of fruit?
A:
Katherine has a total of 3 * 4 apples = 12 pears. She therefore had 4 apples + 12 pears = 16 apples and pears. We know she has 21 total pieces of fruit, so this means she must have 21 total - 16 = 5 bananas. The answer is 5.