Question

A refrigerator uses 2 units of electricity in 90 minutes . How many units does it consume in 3 hours .

Ans me friends ...​

Answer 1

Answer:

4 units

Step-by-step explanation:

3 hours means 180 minutes

90 minutes ---> 2 units

1 minute ---> 2/90 units = 1/45 units

180 minutes---> 1/45×180 units = 4 units

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