SSC CGL Tier II 25 Oct 2015 Paper 1

Question : 40 of 100

Marks: +1, -0

Water tax is increased by 20% but its consumption is decreased by 20%. Then the increase or decrease in the expenditure of the money is

Solution:

(2) Percentage effect

= (20-20+ {20 ×-20}/{100} ) \%=-4%

Negative sign shows decrease.

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