model 2 net increase or decrease in % Practice Questions Answers Test with Solutions & More Shortcuts

Question : 16 [SSC CGL Prelim 2002]

A number is increased by 20% and then it is decreased by 10%. Find the net increase or decrease per cent.

a) 10% decrease

b) 8% decrease

c) 8% increase

d) 10% increase

Question : 17 [SSC Delhi Police 2012]

The numerator of a fraction is increased by 20% and denominator is decreased by 20%. The value of the fraction becomes $4/5$. The original fraction is

a) $8/15$

b) $4/5$

c) $7/11$

d) $2/3$

Question : 18 [SSC CPO S.I.2003]

The price of an article was decreased by 10% and again reduced by 10%. By what per cent should the price have been reduced once, in order to produce the same effect as these two successive reductions ?

a) 19%

b) 25%

c) 20%

d) 15%

Question : 19 [SSC CPO SI 2016]

The price of an edible oil is increased by 25%. To maintain the budget, Sushma reduces the consumption of this oil by 20%. The increase in expenditure due to this edible oil is:

a) 1

b) 3

c) 2

d) 0

Question : 20 [SSC CPO S.I.2004]

A number reduced by 25% becomes 225. What per cent should it be increased so that it becomes 375?

a) 30%

b) 75%

c) 35%

d) 25%