A bookstore has 45 copies of a bestseller available on Saturday morning. Twenty-one customers purchase the book that day. On Monday, a shipment of 25 books arrives and 14 copies are sold. Which statements are correct?

Responses

1. The bookstore has 31 copies of the bestseller left on Monday.

2. The bookstore had a total of 66 copies of the bestseller before any copies were sold.
3. The bookstore sold a total of 35 copies of the bestseller over the weekend.
4. The bookstore sold more copies of the bestseller on Monday than on Saturday.

Correct statements:
1. The bookstore has 31 copies of the bestseller left on Monday.
3. The bookstore sold a total of 35 copies of the bestseller over the weekend.

To determine which statements are correct, let's analyze the given information and calculate the final results.

1. "The bookstore has more copies of the bestseller after Monday than before."
To verify this statement, we need to compare the number of copies before and after Monday.
Before Monday: 45 copies
After Monday: (45 + 25) - 14 = 56 - 14 = 42 copies

Since 42 is less than 45, this statement is incorrect. The bookstore has fewer copies after Monday.

2. "Saturday's sales of the bestseller exceeded Monday's sales."
To determine this, we need to check the number of copies sold on each day.
Saturday's sales: 21 copies
Monday's sales: 14 copies

Since 21 is greater than 14, this statement is correct.
Saturday's sales of the bestseller indeed exceeded Monday's sales.

Therefore, the correct statement is: "Saturday's sales of the bestseller exceeded Monday's sales."

1. The bookstore has 45-21 = 24 copies of the bestseller available on Saturday evening.

2. The bookstore has 24+25 = 49 copies of the bestseller available on Monday morning.
3. The bookstore has 49-14 = 35 copies of the bestseller available on Monday evening.
4. The bookstore has sold a total of 21+14 = 35 copies of the bestseller.

Correct statements: 3, 4