Percentage Practice Test 1 with solutions

Question : 13 of 40

Marks: +1, -0

15 litres of mixture contains 20% alcohol and rest water. If 3 litres of water be mixed in it, the percentage of alcohol in the new mixture will be:

Solution:

Amount of alcohol

=20/100 ×15

= 3 litre
Hence, required percentage

= 3/18 ×100 = 16 2/3%

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