Question

В понедельник Александра поделилась с пятью друзьями в интернете картинкой. после этого , каждый кто получил эту картинку, отправлял ее двум друзьям, которые ее еще не видели. В какой день недели число всех людей, которые уже видели эту картинку, станет больше 100? А) В СРЕДУ Б) В ЧЕТВЕРГ В)В ПЯТНИЦУ Г)В СУББОТУ Д) В ВОСРЕСЕНЬЕ

Answer 1

В понедельник картинку видели Александра и 5 ее друзей.
Во вторник картинку получили 5·2=10 человек, итого 6+10=16.
В среду картинку получили 10·2=20 человек, итого 16+20=36.
В четверг картинку получили 20·2=40 человек, итого 36+40=76.
В пятницу картинку получили 40·2=80 человек, итого 76+80=156.
Ответ: в пятницу

Answer 2

Answer:

To determine the day of the week when the number of people who have seen the picture will exceed 100, we can use the following approach:

- On Monday, Alexandra shared the picture with five friends. - Each person who received the picture then sent it to two friends who hadn't seen it yet.

Let's calculate the number of people who have seen the picture on each day of the week to find out when the count exceeds 100.

Calculation:

- Monday: Alexandra shares the picture with 5 friends. - Tuesday: 5 friends each share with 2 friends, making it 5 * 2 = 10 new people who have seen the picture. The total count is now 5 (initial friends) + 10 (new people) = 15. - Wednesday: 10 people each share with 2 friends, making it 10 * 2 = 20 new people who have seen the picture. The total count is now 15 (existing count) + 20 (new people) = 35. - Thursday: 20 people each share with 2 friends, making it 20 * 2 = 40 new people who have seen the picture. The total count is now 35 (existing count) + 40 (new people) = 75. - Friday: 40 people each share with 2 friends, making it 40 * 2 = 80 new people who have seen the picture. The total count is now 75 (existing count) + 80 (new people) = 155.

Conclusion:

The number of people who have seen the picture will exceed 100 on Friday.