Cook on gas

The gas cylinder will last for 30 weekends for 2 hours of daily cooking. How many days will we be able to cook on a new cylinder when we cook 3 hours a day?

Result

d =  40

Solution:

d=2⋅ 2⋅ 30/3=40d=2 \cdot \ 2 \cdot \ 30/3=40

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