Percentage Practice Test 6 with solutions

Question : 9 of 40

Marks: +1, -0

Sugar is now being sold at Rs. 15 per kg. During last month its rate was Rs. 13 per kg. Find by how much per cent must a family reduce its consumption to keep the expenditure fixed?

$13 1/ 3 %$
14%
15%
$15 1 /5 %$

Validate

Solution:

Increase percentage

={15=13}/13×100=200/13%

Required percentage of reduction

={200/13}/{100+200/13}×100

=200/1500×100=13 1/3%

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