# On the first day, 1/3 of the entire field area was plowed, on the second day, 2/15 of the entire field area, and on the third day, 68.8

December 31, 2020 | education

| **On the first day, 1/3 of the entire field area was plowed, on the second day, 2/15 of the entire field area, and on the third day, 68.8 hectares remained. How many hectares of land were plowed in three days?**

x – the whole area of the field

From the conditions of the problem:

x-1 / 3x-2 / 15x = 68.8

Decision:

x * (15-5-2) / 15 = 68.8

x * 8/15 = 68.8

x = (68.8 * 15) / 8 = 129 hectares – plowed area in three days

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