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1. A tap drips at a rate of one drop/second. 600 drops make 100 ml. The number of liters wasted in 300 days is -

A. 4320000 liters

B. 432000 liters

C. 43200 liters

D. 4320 liters

Solution:

\begin{aligned} 1 second \to 1 drop \\ Number of second in 300 days \\ (24_{hrs} \times 60_{mins} \times 60_{sec}) \times 300 days \\ Number of milli - liters wasted \\ 100 \times \frac{24 \times 60 \times 60 \times 300}{600} \\ = 43200 \times 100 \\ = 4320000 ml \\ = \frac{4320000}{1000} \\ = 4320 liters \end{aligned}

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