model 1 simple percentage questions 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

percentage Important Formulas, Rules, Concepts & Shortcuts

Question : 26 [SSC CGL Tier-I 2012]

What percent of 3.6 kg is 72 gms. ?

a) 12%

b) 2%

c) 32%

d) 22%

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Answer: (b)

Required percentage = $72/{3.6 × 1000}$ × 100 = 2%

Question : 27

$2/3$ is what percent of $1/3$ ?

a) 150%

b) 200%

c) 50%

d) 33$1/3$%

Shortcut »

Answer: (b)

Let x % of $1/3 = 2/3$

x% = ${2×3}/3$=2⇒ x = 200%

Question : 28 [SSC CGL Tier-I 2013]

A dozen pairs of socks quoted at Rs.180 are available at discount of 20%. How many pairs of socks can be bought for Rs.48?

a) 2 pairs

b) 5 pairs

c) 3 pairs

d) 4 pairs

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Answer: (d)

Since S.P. of a dozen pairs of socks = ${180 × 80}/100$ = Rs.144

S.P. of 1 pair of socks = $144/12$ = Rs.12

No of pairs available for Rs.48 = $48/12$ = 4

Question : 29

If 50% of (x – y) = 30% of (x + y), then what per cent of x is y?

a) 40%

b) 400%

c) 25%

d) 33$1/3$%

Shortcut »

Answer: (c)

50% of (x – y) = 30% of (x + y)

$1/2(x - y) = 3/10(x + y)$

$x/2 - {3x}/10 = {3y}/10 + y/2$

${5x – 3x}/10 ={3y + 5y}/10$

$x/5 = {4y}/5$ ⇒ x = 4y

$y = x/4 (or) x/4 ×100% = 25x$

Obviously, y is 25% of x

Question : 30 [SSC CISF 2011]

One-third of 1206 is what percent of 134 ?

a) 200%

b) 300%

c) 100%

d) 150%

Shortcut »

Answer: (b)

$1/3 of 1206 = 1206 × 1/3 = 402$

Required percent = $402/134$ × 100 = 300%

IMPORTANT quantitative aptitude EXERCISES

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