What percent is 3% of 5% ?
Let 3% be x% of 5%
⇒x%×5%=3%
⇒x100×5100=3100
⇒5x100=3
⇒x20=3
⇒x=3×20
⇒x=60
⇒x%=60%
Hence, Option D is correct.
Vinegar is a solution of about :
(a) 5 to 8 per cent ethanoic acid in alcohol (b) 5 to 8 per cent ethanoic acid in water
(c) 50 to 80 per cent ethanoic acid in water (d) 50 to 80 per cent ethanoic acid in alcohol