model 4 x & y comparison Practice Questions Answers Test with Solutions & More Shortcuts
percentage PRACTICE TEST [11 - EXERCISES]
model 1 simple percentage questions
model 2 net increase or decrease in %
model 3 reducing & exceeding prices
model 4 x & y comparison
model 5 income & expenditure
model 6 consumption & remaining
model 7 marks scored in examinations
Model 8 population based
model 9 voters & election
model 10 percentage with allegations & mixture
model 11 percentage with ratios
Question : 16
The percentage change in a number when it is first decreased by 10% and then increased by 10% is
a) 0.1 % decrease
b) 0.1 % increase
c) No changes
d) 1 % decrease
Answer »Answer: (d)
Required percent = $(- x^2/100)% = - {10 × 10}/100$= -1%
Negative sign shows decrease.
Question : 17 [SSC CGL Tier-I 2016]
A's income is 25% more than B's income. B's income is what per cent of A's income ?
a) 50
b) 80
c) 25
d) 75
Answer »Answer: (b)
Let B's income be Rs. 100.
A's income = Rs. 125
Required percent = $(100/125 × 100)$ = 80%
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model 4 x & y comparison Shortcuts »
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Click to Start..percentage Shortcuts and Techniques with Examples
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model 1 simple percentage questions
Defination & Shortcuts … -
model 2 net increase or decrease in %
Defination & Shortcuts … -
model 3 reducing & exceeding prices
Defination & Shortcuts … -
model 4 x & y comparison
Defination & Shortcuts … -
model 5 income & expenditure
Defination & Shortcuts … -
model 6 consumption & remaining
Defination & Shortcuts … -
model 7 marks scored in examinations
Defination & Shortcuts … -
Model 8 population based
Defination & Shortcuts … -
model 9 voters & election
Defination & Shortcuts … -
model 10 percentage with allegations & mixture
Defination & Shortcuts … -
model 11 percentage with ratios
Defination & Shortcuts …
quantitative aptitude CATEGORIES
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