VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – QUESTION 12 : A tap drips at a rate of one drop of water every second. If it takes 600 such drops to fill a 100 millilitre bottle, the number of litres of water that would be wasted in 300 days is - (A) 432, (B) 4320, (C) 43200, (D) 432000, (E) 4320000.
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VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – ANSWER 12 : B. Number of drops in 300 days = 300 day x 24 hour / day x 60 min / hour x 60 s / min x 1 drop / s = 2.592 x 10^7 drops. Number of litres of water = (2.592 x 10^7) drop / (600 drop) x 100 mL x 1 L / (1000 mL) = 4320 L.
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