Question: Josiah puts a quarter in his piggy bank every day for 24 days. Leah saves 50 cents in an empty pickle jar every day for 20 days. Megan saves twice as much as Leah for 12 days. How much do the three children save together?
Answer: Josiah saves 0.25 x 24 = $6. Leah saves 0.50 x 20 = $10. Megan saves $1 x 12 = $12. Together, the children save $6 + $10 + $12 = $28. The answer is 28.
[Question]With her savings, Sara bought two books: a book for 5.5 and a book for 6.5. She gives a 20 bill to the seller. How much change does she get back?
[Answer]To find out how much the saleswoman should return to her, we have to find out how much Sara spent in total. She spent 5.5 + 6.5 = 12. So she gives 20 and the cashier should keep 12. The cashier therefore returns the difference between these two sums: 20 12 = 8. The answer is 8.
Q: James writes a comic every other day for 4 years. If there was no leap year, how many comics has he written?
A: There have been 365 days in a year * 4 years = 1460 days. So he wrote 1460 / 2 = 730 comics. The answer is 730.
Question: There were 20 fishermen in the lake who had cast their net to catch fish. If they caught 10000 fish in total, and 19 of them caught 400 fish each with their own net, calculate the number of fish the twentieth fisherman caught.
Answer: The 19 fishermen who caught 400 fish each caught 400 * 19 = 7600 fish. If they caught a total of 10000 fish, the twentieth fisherman caught 10000 - 7600 = 2400 fish alone. The answer is 2400.
[Question]In a classroom there are 30 students. 1/3 of them are boys. Among the girls, 40% own dogs, 20% own a cat, and the rest have no pets. How many girls in the class have no pet?
[Answer]2 / 3 students are girls because 1 - (1 / 3) = 2 / 3. 20 students are girls because 30 x (2 / 3) = 20. 40% of the girls don't have any pets because 100 - 40 - 20 = 40. 8 girls in class have no pets because 20 x .4 = 8. The answer is 8.
[Question]Reggie's father gave him $48. Reggie bought 5 books, each of which cost $2. How much money does Reggie have left?
[Answer]
The cost of the books is 5 $2 = $10. Reggie has $48 $10 = $38 left. The answer is 38.