Why are machines important in our daily life? (i) Machines help to make our work to do better. (ii) Machines help to do work faster. (iii) Machines help to reduce work.
A
i and ii only
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B
ii and iii only
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C
i and iii only
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D
i,ii,iii only
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Solution
The correct option is B i and ii only The amount of work that has to be done is not reduced by the machines only the effort applied is reduced. They make our work done faster, easier and better.