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प्रश्न
By weight, 90% of tomato and 78% of potato is water. Find the weight of water in 25 kg of tomato.
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उत्तर
Water in tomato = 90% and water in potato = 78%
Weight of water in 25 kg of tomato
= 25 × 90%
= `(25xx90)/100`
= `90/4` kg
= `45/2` kg
= 22.5 kg
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