Mathematics for IGCSE & O level - Percentages (Section 4)
1
What is 60% of 90?
Cevap
(C)
54
2
Which situations involve calculating a percentage?
Cevap
A
B
D
3
What is the percentage equivalent of 0.65?
Cevap
(C)
65%
4
What is 0.012 as a percentage?
Cevap
(C)
1.2%
5
What is the percentage profit if an item is bought for $1.40 and sold for $1.80?
Cevap
(C)
28.6%
6
What are ways to calculate the percent of a value?
Cevap
B
C
7
What is the value of the investment after 5 years, given Salim invests $4000 with 3.25% compound interest?
Cevap
(A)
$4693.65
8
If sales tax is 7%, what is the total cost of an item that costs $50 before tax?
Cevap
(C)
$53.50
9
What is 3/8 as a percentage?
Cevap
(B)
37.5%
10
Pulova has high inflation. In 2023, prices increased by 15% a month for the first six months and 12.5% for the next six months. If a car cost 78,000 dubs (their unit of currency) in January 2023, how much did it cost in January 2024?
Cevap
(C)
118,587
11
What percentage of 500 is 25?
Cevap
(B)
5%
12
What is the percentage equivalent to the fraction 3/4?
Cevap
(D)
75%
13
A salesman earns a commission of 5% on all sales. If he sells $1000 worth of goods, how much commission does he earn?
Cevap
(B)
$50
14
A store marks up the price of an item by 20%. If the original price was $20, what is the new price?
Cevap
(B)
$24
15
An item's value decreases by 15% each year. If the original value is $1400, what is the value after 4 years?
Cevap
(B)
$728.05
16
What is 120% of 50?
Cevap
(B)
60
17
A retailer buys a product for $40 and sells it for $60. What is their percentage profit?
Cevap
(D)
50%
18
If 30% of a number is 12, what is 50% of that number?
Cevap
(B)
18
19
If the sales tax rate is 6.5%, what is the tax on an item that costs $100?
Cevap
(B)
$6.50
20
If an item costs $12 now and its price increases by 5% per year due to inflation, what will it cost in 2 years' time?
Cevap
(B)
$13.23
21
What is the percentage equivalent of 7/10?
Cevap
(C)
70%
22
Which of these are true about a percentage?
Cevap
B
C
D
23
What is 15% of $80?
Cevap
(C)
$12
24
Which scenarios involve a percentage decrease?
Cevap
A
C
25
If a cake recipe requires 2 cups of flour and you want to scale the recipe to 150%, how much flour do you need?
Cevap
(C)
3 cups
26
If an item is marked up by 30%, what is the new price as a percentage of the original?
Cevap
(D)
130%
27
Which of the following situations demonstrate a percentage increase?
Cevap
A
B
28
Which of the following represents an increase of 25%?
Cevap
(C)
Multiplying by 1.25
29
If an item increases in price by 50%, what factor is the new price multiplied by in comparison to the original?
Cevap
(C)
1.5
30
If you earn a commission of 8% on sales, how much commission would you earn on $500 in sales?
Cevap
(B)
$40
31
If the attendance at a football game was 12,000, which is 80% of the stadium's capacity, what is the full capacity?
Cevap
(C)
15,000
32
What is the total amount in the bond after 6 years, given that Andrew invested $3500 in a six-year bond that paid 5% compound interest for the first three years and 7.5% compound interest for the next three years?
Cevap
(C)
$4665.38
33
In simple interest, interest is calculated on the
Cevap
(A)
Original amount
34
What is 140% of 70?
Cevap
(C)
98
35
Bob's Budget Bargains buys washing machines for $270 and sells them for $330. What is their percentage profit?
Cevap
(A)
22.2%
36
Which of the following is equivalent to a 20% discount?
Cevap
A
C
D
37
Yassim invested $500 at 4% compound interest. How many years will it take for the value of the investment to be over $600?
Cevap
(B)
5 years
38
If a shopkeeper buys 100 cups for $1.20 each and sells 80 with a 15% profit and the remaining 20 at 95c each, what is the total revenue from the sale of 80 cups?
Cevap
(C)
$110.40
39
If you get 90% on a test with 40 questions, how many questions did you answer correctly?
Cevap
(A)
36
40
A store offers a 20% discount. If the original price is $10, what is the final price?
Cevap
(B)
$8
41
If 12 is 30% of a number, what is that number?
Cevap
(D)
40
42
A worker's pay is increased by 5%. If their old salary was $30,000, what is the new salary?
Cevap
(C)
$31,500
43
Which fraction is equivalent to 60%?
Cevap
(C)
3/5
44
What is the percentage loss when a car is bought for $9500 and sold for $8300?
Cevap
(B)
12.6%
45
If an item originally costs $50 and is discounted by 10%, what is the sale price?
Cevap
(C)
$45
46
Mr. Costa was given an 8% pay rise every year. His starting salary was $28,500. How much does he earn after four rises?
Cevap
(C)
$38856
47
If an item costs $12 now and the price increases by 5% annually, what will be the price after 1 year?
Cevap
(B)
$12.60
48
A television is sold for $630, making a profit of 5%. What was the cost price?
Cevap
(C)
$600
49
What does the 'n' represent in the compound interest formula?
Cevap
(D)
Number of years
50
What are the possible outcomes in the long run when the inflation occurs?
