Question

В магазин поступило в продажу 800 пальто. В 1-й день продали 15% всех пальто, во 2-й день - 25% того, что осталось. Сколько процентов всех пальто, поступивших в продажу, осталось непроданными после двух дней?

Answer 1

800:100*15=120(п) продали в 1 день
800-120=680
680:100*25=170(п) продали во 2 день
170+120=290 
290:8= 36,25 % продали
100-36.25=63,75
Ответ: Осталось 63,75%

Answer 2

Calculation of Unsold Coats after Two Days

To calculate the percentage of coats that remained unsold after two days, we need to follow the given information.

- Total number of coats in stock: 800 - On the first day, 15% of all coats were sold. - On the second day, 25% of the remaining coats were sold.

Let's calculate the number of coats remaining after each day:

1. First day: - Coats sold on the first day: 15% of 800 = 0.15 * 800 = 120 - Coats remaining after the first day: 800 - 120 = 680

2. Second day: - Coats sold on the second day: 25% of 680 = 0.25 * 680 = 170 - Coats remaining after the second day: 680 - 170 = 510

Therefore, after two days, there are 510 coats remaining unsold.

To calculate the percentage of unsold coats, we can use the following formula:

Percentage of unsold coats = (Number of unsold coats / Total number of coats) * 100

Let's calculate the percentage of unsold coats:

- Number of unsold coats: 510 - Total number of coats: 800

Percentage of unsold coats = (510 / 800) * 100 = 63.75%

Therefore, after two days, approximately 63.75% of all coats that were put up for sale remain unsold.

Please note that the above calculation assumes that there were no additional coats added to the stock or any other factors that could affect the number of unsold coats.