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प्रश्न
25 ml is ______ per cent of 5 litres.
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उत्तर
25 ml is 0.5 per cent of 5 litres.
Explanation:
Let 25 ml be x% of 5 litres
Then, 25 ml = x% of 5 litres
⇒ `25 = x/100 xx 5 xx 1000` ...[∵ 1 l = 1000 ml]
⇒ `(25 xx 100)/(5 xx 1000) = x`
⇒ x = 0.5
Hence, 25 ml is 0.5% of 5 litres.
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