Question

A candle uses 15/28 liters of oxygen in 30/14 minutes. What is the candle’s oxygen consumption rate in terms of liters per minute

Answer 1

Answer: 1/4 liters per minute

Step-by-step explanation:

$\dfrac{15}{28} \div \dfrac{30}{14} =\dfrac{15}{28} \cdot \dfrac{14}{30} =\dfrac{1}{4} \: \: (\text {liters\: \: per \: \: minute})$