Ratio and Proportion Practice Test 4

Question : 5 of 40

Marks: +1, -0

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

$18 1/2 %$
17%
$16 2/3 %$
15%

Validate

Solution:

In original mixture, the amount of alcohol

= 20/100 × 15 =3l

In new mixture, the percentage of alcohol

= 3/18 ×100 = 16 2/3%

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