Question

На конкурсе юных хозяек Оля и Инна почистили за 5 минут 1800 г картошки. За минуту Инна чистит на 120 г меньше, чем Оля. Сколько граммов картошки за минуту чистит Оля?

Answer 1

1800:5=360г-за одну минуту вместе,360:2=180г,180-120=60г-чистит Инна,180+120=300г-чистит Оля

Answer 2

Calculation of Potato Peeling Rate

To calculate the rate at which Olya and Inna peel potatoes, we can use the information provided in the question. Let's break it down step by step:

1. Olya and Inna together peeled 1800 grams of potatoes in 5 minutes. 2. Inna peels 120 grams less than Olya in one minute.

To find out how many grams of potatoes Olya peels in one minute, we need to determine the difference between their peeling rates.

Let's assume that Olya peels x grams of potatoes in one minute. Inna, therefore, peels (x - 120) grams of potatoes in one minute.

To find the value of x, we can set up the following equation:

Olya's peeling rate + Inna's peeling rate = Total peeling rate

x + (x