Question

Нина набирает на компьютере одну страницу за 15 мин. Лена- за 20 мин. Сколько страниц наберет каждая девочка за 1 час ? за 2 ? (С ОТВЕТОМ)

Answer 1

Calculation of Pages Typed by Nina and Lena

To calculate the number of pages typed by Nina and Lena in 1 hour and 2 hours, we need to determine how many pages each of them types in 15 minutes and then multiply that by the number of intervals in 1 hour and 2 hours.

Given that Nina types 1 page in 15 minutes and Lena types 1 page in 20 minutes, we can calculate the number of pages typed by each of them in 1 hour and 2 hours.

Pages Typed in 1 Hour:

- Nina types 1 page in 15 minutes, so in 1 hour (60 minutes), she will type 4 pages. - Lena types 1 page in 20 minutes, so in 1 hour (60 minutes), she will type 3 pages.

Pages Typed in 2 Hours:

- Nina types 1 page in 15 minutes, so in 2 hours (120 minutes), she will type 8 pages. - Lena types 1 page in 20 minutes, so in 2 hours (120 minutes), she will type 6 pages.

Therefore, the number of pages each girl will type in 1 hour is: - Nina: 4 pages - Lena: 3 pages

And the number of pages each girl will type in 2 hours is: - Nina: 8 pages - Lena: 6 pages

Please note that these calculations are based on the given information and assume that both girls maintain a consistent typing speed throughout the entire duration.