Consumption 6068

In two months, the Novák family consumed 624 kWh of electricity during the day and 3018 kWh at night. How much kWh of electricity will the Novák family consume now in two months at the daily rate, and how much at the night rate if they decide to reduce consumption in the ratio of 4:7?

Correct answer:

d =  356.5714 kWh
n =  1724.5714 kWh

Step-by-step explanation:

$d=624\cdot \frac{4}{7}=\frac{624\cdot 4}{7}=\frac{2496}{7}=\frac{2496}{7}\text{kWh}=356.5714\text{kWh}$

$n=3018\cdot \frac{4}{7}=\frac{3018\cdot 4}{7}=\frac{12072}{7}=\frac{12072}{7}\text{kWh}=1724.5714\text{kWh}$

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