Question :
Samsung air conditioners are inefficient as compared to Hitachi air conditioners. While Hitachi air conditioners cool the area faster and consume less electricity than the Samsung ones, we should prefer Hitachi air conditioners over Samsung ones.
Which of the following is assumption in the passage?
1. People are interested in such comparisons
2. The dimensions of air conditioners of both companies are similar
3. The cooling mechanism of Hitachi required less investment
4. The installation charges of air conditioners of both are standardized
5. Air conditioners of both companies were tested in identical conditions
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