model 5 income & expenditure Section-Wise Topic Notes With Detailed Explanation And Example Questions

MOST IMPORTANT quantitative aptitude - 11 EXERCISES

Top 10,000+ Aptitude Memory Based Exercises

The following question based on percentage topic of quantitative aptitude

Questions : 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

The correct answers to the above question in:

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

Practice percentage (model 5 income & expenditure) Online Quiz

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Read more income expenditure Based Quantitative Aptitude Questions and Answers

Question : 1

Nitin's salary was reduced by 10% and then the reduced salary was increased by 10%. His new salary in comparison with his original salary is

a) 1% less

b) 1% more

c) the same

d) 5% less

Answer: (a)

Let Nitin's initial salary be 100

After 10% reduction,

New salary = 90% of 100 = Rs.90

Again after 10% increase

New salary = ${90 × 110}/100$ = Rs.99

Percentage decrease =1 %

Question : 2

A's salary is 50% more than that of B. How much per cent is B's salary less than that of A?

a) 45%

b) 33$1/3$%

c) 50%

d) 66$2/3$%

Answer: (b)

Using Rule 8,

Simple approach

Required percentage = $(50/{100 + 50} × 100)%$

= $50/150 × 100 = 100/3 = 33{1}/3%$

Question : 3

Mita's income is 25% more than that of Sita. What percent is Sita's income less than that of Mita ?

a) 22$1/2$%

b) 24%

c) 25%

d) 20%

Answer: (d)

Using Rule 8,

Required percentage = $25/{100 +25}× 100$ = 20%

Question : 4

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: (a)

Basic pay of the employee

= $11925 × 100/265$ = Rs.4500

Question : 5

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: (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 : 6

If the income of Ram is 12$1/2$% more than that of Shyam, the income of Shyam is less than that of Ram by

a) 87$1/2$%

b) 13$1/2$%

c) 11$1/9$%

d) 88$1/9$%

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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