Percentages - Hand out
- 2
43.
In a group of 30 students and 4 teachers,
each student got chocolates that are 30% of the total number of students, and
each teacher got chocolates that are 50% of the total number of students. How
many sweets were there?
a) 270 b) 330
c) 350 d) 300
44.
The salary of A and B together is Rs 35000. A
spends 55% of his salary and B spends 40% of his. What is the salary of A if
their savings are the same?
a) Rs
15,000 b) Rs 25,000
c) Rs
30,000 d) Rs 20,000
45.
A spends 75% of his salary, and B saves 40%
of his salary, and each of their savings is equal. What is the difference
between the incomes of A and B, if their total income is Rs 65000?
a) Rs
15,000 b) Rs 7,500
c) Rs
13,000 d) Rs 17,500
46.
The salary of an employee increases from Rs
28000 to Rs 35000, What is
the percentage increase in his salary?
a) 20% b) 15%
c) 30% d) 25%
47.
The total number of students who joined an
engineering college in 2020 was 560 and in 2021 was 480. What is the percentage
decrease in the number of students joining from 2020 to 2021?
a) 14.28% b) 18%
c) 20% d) 25%
48.
The latest edition of an aptitude book consists
of 600 pages. If 4 new chapters, each chapter consists of 30 pages added to the
latest edition of the book, find the percentage increase in the number of pages
of the book.
a) 25% b) 30%
c) 50% d) 20%
49.
The weight of a packet is 36 kg. In a hurry,
it is measured as 37.8 kg. What is the error % in measuring its weight?
a) 2% b) 3%
c) 5% d) 6%
50.
The present population of a village is 12,000
and its population growth rate is 25% per annum. What will be its population
after 2 years?
a) 15,000 b) 18,750
c) 17,500 d) 22,500
51.
The price of a laptop is Rs 25000. It
decreases by 20% during the first year and increases by 30% during the 2nd year.
Find its price after 2 years?
a) Rs 26,000 b) Rs 30,000
c) Rs
39000 d) Rs 28500
52.
The sales of a company decreased by 20% and
by 25% in the last two successive years. If its present sales
are Rs 12,000
crores. What were its sales 2 years ago?
a) Rs
20,000 cr b) Rs 18,000 cr
c) Rs
15,000 cr d) Rs 8,000
53.
The population of a small town increased by
25% every 4 years. What was the population of the village 8 years
ago if the present population is 30,000?
a) 18,000 b) 20,830
c) 24,000 d) 19,200
54.
The prices of diesel and petrol are in the
ratio of 5:8. If the
price of
diesel is increased by 40% and the price of petrol is decreased by
25%, find the ratio between the increased prices of petrol and
diesel.
a) 6:7 b) 7:6
c) 5:8 d) 7:10
55.
The salaries of the three employees are in
the ratio of 4:5:10 respectively. If their salaries are increased by 50%, 20%,
and 40% respectively, what will be the ratio of their new salaries?
a) 6:9:14 b) 3:3:7
c) 6:8:15 d)
None
56.
A person saves 13% of his salary. If his
salary is increased by 30% and he saves 20% of his new income, by what percent
his savings will increase?
a) 50% b) 100%
c) 75% d) 80%
57.
The income of a person is increased by 30%
and afterward decreased by 30%. Find the overall percentage change in his
income.
a) 9%
decrease b) 60% increase
c) 3%
increase d) No change
58.
The price of a product increases by 25% and
its sales decrease by 20%. What is the net change in sales revenue?
a) 5%
decrease b) 5% increase
c) 15%
increase d) No change
59.
The length of a rectangle is increased by
20%, whereas the breadth is increased by 30%. Then net % change in area?
a) 56%
increase b)10% increase
c) 45%
increase d) None
60.
The profits of a company increase at a rate
of 5% per annum. In the 2nd year, there is an additional increase of 3% in
the profits due to sudden demand for its product. The % increase in the
profits after 2 years will be
a) 10.25% b) 13.4%
c) 10% d) 13%
61.
The side of a square is increased by 30%,
what is the percentage increase in its area?
a) 60% b) 45%
c) 50% d) 69%
62.
In measuring the sides of a floor of a room
an error of 6% excess is made. Find the error percentage in its area.
a)12%
excess b)12.36%
excess
c)8%
decrease d)8%
decrease
63.
In a fraction, the numerator is increased by
75%, and the denominator is decreased by 20%, then the value of the fraction
becomes 3/4. What is the original fraction?
a) 12/25 b) 25/12
c) 12/35 d) 35/12
64.
If the numerator of a fraction is increased
by 90% and its denominator is diminished by 24%, then the value of the fraction
is 25/8. The original fraction is
a) 5/4 b) 3/5
c) 4/5 d) 12/7
65.
The two numbers are respectively 40% and 60 %
less than the third. By what % is the first greater than the second?
a) 100% b) 25%
c) 50% d) 50%
66.
The salary of M is 25% more than N and the
salary of Q is 20% less than N. Q’s salary is what % of M’s salary?
a) 45% b) 75%
c) 148.8
% d) 64%
67.
The marks of A are 75% of B and the marks of
B are 80% of C. If the marks of B are 480, then find the marks of C?
a) 360 b) 600
c) 540 d) 580
68.
A sum of Rs 35,000 is divided among A, B, and
C such that A receives 33.33% less than B and B receives 20% less than C. What
is the difference between the shares of A and C?
a) Rs 7,000 b) Rs 4,000
c) Rs
3,000 d) Rs 4,500
69.
If A is greater than B by 25%, by what %, B
is less than A?
a) 15 % b) 25%
c) 20% d) 10 %
70.
The price of sugar is increased by 10%. By
what percentage the consumption of sugar be reduced if a family wants to keep
its expenses on sugar unaltered?
a) 25% b) 12.5 %
c) 10% d) 9.09 %
71.
The length of a rectangle is increased by
20%. By how much percentage its breadth be reduced so that the area is
increased by 8%?
a) 25% b) 12.5 %
c) 10% d) 16 2/3 %
72.
The price of an article is increased by 16
2/3%. By how much percentage new price must be decreased to restore it to the
original price?
a) 14 2/7% b) 20%
c) 18% d) 25%
73.
The salary of A is 20% less than that of B.
By what %, the salary of B is more than that of A?
a) 20% b) 15%
c) 25% d) 30 %
74.
If the oil price goes down by 25%, how much
should a homemaker increase their consumption so that total expenditure
decreases by 7%?
a) 33.33% b) 18%
c) 32% d) 24%
75.
Due to a sudden fall in the demand, the sales
of a company decrease by 9.09%. By what % should the price of the products be
increased to restore the original sales revenue?
a) 10% b) 15%
c) 20% d) 25%
76.
In an examination, 57% of students passed in
Quantitative aptitude, 45% of students passed in Verbal ability, and 25% passed
in both subjects. What is the % of students who failed in both subjects?
a) 21% b) 18%
c) 23% d) 13%
77.
500 guests attended a party. 38% drink tea,
42% drink coffee and 12% drink both. How many guests do not drink any of these
two?
a) 160 b) 66
c) 70 d) 150
78.
600 students are there in a language
school.65% study Russian,45% study French, and 20% study neither. How many
students are either Russian or French but not both?
a) 200 b) 240
c) 300 d) 360
79.
A group contains 20 boys and 60 girls. How
many boys must join the group so that the group contains 40% boys?
a) 30 b) 40
c) 20 d) 50
80.
The price of an article has fallen by 8%. How
many articles can now be bought for the money, which was sufficient to buy 46
articles earlier?
a) 55 b) 50
c) 60 d) None
