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A watch becomes fast by 5 minutes everyday. By what percent does it become fast ?

A watch becomes fast by 5 minutes everyday. By what percent does it become fast ? Correct Answer $$\frac{{50}}{{144}}\% $$

Number of minutes in a day
= (24 × 60) = 1440
∴ Required percentage
$$\eqalign{ & = \left( {\frac{5}{{1440}} \times 100} \right)\% \cr & = \frac{{50}}{{144}}\% \cr} $$

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