At a farm, a crate of fruits can hold 25 mangoes. If a farm worker can fill 9 crates in a day and the farm has 38 farm workers, how many mangoes can be packed into crates in 7 days?

Rashida and Mustafa have bookshelves of the same size and holding books of the same sizes. Rashida's shelf is

1

2

full and Mustafa's shelf is

4

5

full. If 63 more books of the same size are distributed among them, then they can fill their shelves completely. How many books does Mustafa have today?

In a warehouse, the workers start their work daily at 08:15 AM and end at 07:00 PM. They get a break of 45 minutes to have lunch and two coffee breaks of 15 minutes each. What is the simplest form of the ratio of time they spend working to the time of their breaks?