model 5 income & expenditure Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 11 EXERCISES
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The following question based on percentage topic of quantitative aptitude
(a) 87$1/2$%
(b) 13$1/2$%
(c) 11$1/9$%
(d) 88$1/9$%
The correct answers to the above question in:
Answer: (c)
Using Rule 8,
Tricky approach
Required %= ${R ×100}/{100 ±R}$
Required % =${12.5 × 100}/{100 + 12.5}$
= $1250/112.5 = 100/9 = 11{1}/9$
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Read more income expenditure Based Quantitative Aptitude Questions and Answers
Question : 1
A worker suffers a 20% cut in his wages. He may regain his original wages by obtaining a rise of
a) 22.5%
b) 25.0%
c) 27.5%
d) 20.0%
Answer »Answer: (b)
Using Rule 9,
If 'x' is A% less than 'y', then y is more than 'x' by
Required% = $(A/(100 - A)× 100)%$(increase)
Required percentage of increase = $r/{100 – r}× 100$
= $20/{100 – 20}× 100$
= $20/80×100$ = 25%
Question : 2
The allowances of an empolyee constitutes 165% of his basic pay. If he receives Rs.11925 as gross salary, then his basic pay is (in Rs.) :
a) 4500
b) 5000
c) 4000
d) 5500
Answer »Answer: (a)
Basic pay of the employee
= $11925 × 100/265$ = Rs.4500
Question : 3
Tulsiram's salary is 20% more than that of Kashyap. If Tulsiram saves Rs.720 which is 4% of his salary, then Kashyap's salary is
a) Rs.10,000
b) Rs.12,000
c) Rs.15,000
d) Rs.22,000
Answer »Answer: (c)
Let Tulsiram's salary be Rs.x.
${x × 4}/100 =720$
x = ${720 × 100}/4$= Rs.18000
Kashyap's salary = Rs.$(100/120 × 18000)$ = Rs.15000
Question : 4
The income of C is 20% more than B's and the income of B is 25% more than A's. Find by how much per cent is C's income more than A's ?
a) 25%
b) 50%
c) 150%
d) 35%
Answer »Answer: (b)
Suppose income of A = Rs.100
Income of B = Rs.125
Income of C = Rs.150
Required percentage = ${50 × 100}/100$ = 50%
Question : 5
A's salary is 25% more than B's salary. B's salary is how much less than A's salary ?
a) 25 %
b) 24 %
c) 20 %
d) 27.5 %
Answer »Answer: (c)
Using Rule 8,
Required percentage = $25/125 ×100 = 20%$
Question : 6
The monthly income of a person was Rs.13,500 and his monthly expenditure was Rs.9,000. Next year his income increased by 14% and his expenditure increased by 7%. The per cent increase in his savings was
a) 28%
b) 21%
c) 7%
d) 35%
Answer »Answer: (a)
Original savings = Rs.(13500 – 9000) = Rs.4500
New income = 114% of Rs.13500 = Rs.(114 × 135) = Rs.15390
New expenditure = 107% of Rs.9000 = Rs.(107 × 90) = Rs.9630
New savings = Rs.(15390 – 9630) = Rs.5760
Percentage increase in savings = ${5760 – 4500}/4500$ × 100
= $1260/45$ = 28%
GET percentage PRACTICE TEST 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 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 …
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