Multiple Choice Questions

Water tax is is increased by 20 but its consumption is decreased by 20 Then increase or decrease in ...........

Quantitative Aptitude(IBPS RRB CL) Percentage

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

40%

96%

None of the above.

When a number is increased by P% and then decreased by P%.Resultant always decreases by P²/100%

hence the answer is

20²/100 = 400/100 = 4% decrease

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