Question

Как решить. 60 тонн нефти было в цистерне. Вначале из неё взяли 1/5. Потом 1/4 остатка сколько всего тонн нефти осталось в цистернн

Answer 1

1. 60:5 = 12 (л.) - взяли из цистерны в 1 раз.
2. 60-12=48 (л.) - осталось после 1 отлива нефти.
3. 48:4=12 (л.) - взяли во второй раз.
4. 60 - 24 = 36 (л.) - осталось нефти в цистерне.
Ответ: 36 литров нефти

Answer 2

Solution for Calculating Remaining Oil in the Tank

To calculate the remaining oil in the tank after taking out 1/5 and then 1/4 of the remaining oil, we can follow these steps:

1. Calculate the amount of oil taken out initially: - Initially, 1/5 of the 60 tons of oil was taken out. - 1/5 of 60 tons = 60 * (1/5) = 12 tons of oil was taken out.

2. Calculate the remaining oil after the first extraction: - After taking out 1/5 of the oil, the remaining amount is 60 - 12 = 48 tons.

3. Calculate the amount of oil taken out in the second extraction: - Then, 1/4 of the remaining oil was taken out. - 1/4 of 48 tons = 48 * (1/4) = 12 tons of oil was taken out.

4. Calculate the total remaining oil in the tank: - The total remaining oil after both extractions is 48 - 12 = 36 tons.

Therefore, 36 tons of oil are left in the tank after the two extractions.

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