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Important questions on Increase And Decrease In Percentage

HARD

If the altitude of a triangle is increased by % while its area remains same, its corresponding base will have to be decreased by:

A

%

B

%

C

%

D

%

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HARD

If tax on a commodity is decreased by 15% and its consumption increases by 10% then the percentage decrease in the revenue is  

A

B

C

D

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