Basic Arithmetic MCQs (Rate, Ratios, Percentages, Compound Interest, etc.)
Basic Arithmetic MCQs
What is 25% of 80?
A) 20
B) 25
C) 30
D) 40
Answer: D
If 20% of a number is 50, what is the number?
A) 250
B) 200
C) 150
D) 100
Answer: A
Express 1.5% as a decimal.
A) 0.015
B) 0.15
C) 1.5
D) 15
Answer: A
What is 3/4 as a percentage?
A) 30%
B) 50%
C) 75%
D) 80%
Answer: C
If the ratio of apples to oranges is 3:2 and there are 15 oranges, how many apples are there?
A) 5
B) 10
C) 15
D) 20
Answer: B
If 40% of a number is 120, what is the number?
A) 200
B) 300
C) 400
D) 500
Answer: C
What percentage of 80 is 20?
A) 20%
B) 25%
C) 50%
D) 75%
Answer: B
Simplify:
5
8
+
3
8
8
5
+
8
3
.
A)
1
2
2
1
B)
3
4
4
3
C)
8
5
5
8
D)
5
3
3
5
Answer: B
What is 20% of 150?
A) 15
B) 30
C) 45
D) 60
Answer: B
If 25% of a number is 50, what is 50% of the same number?
A) 50
B) 100
C) 150
D) 200
Answer: D
Convert 0.75 into a percentage.
A) 7.5%
B) 75%
C) 750%
D) 0.075%
Answer: B
If the ratio of boys to girls in a class is 2:3 and there are 20 boys, how many girls are there?
A) 15
B) 25
C) 30
D) 40
Answer: C
What is 3/5 as a percentage?
A) 30%
B) 50%
C) 60%
D) 75%
Answer: C
If the selling price of an item is $80 and the profit made is 25%, what is the cost price of the item?
A) $60
B) $65
C) $70
D) $75
Answer: C
What is the compound interest on $1000 at 5% per annum for 2 years, compounded annually?
A) $102.50
B) $105.00
C) $110.25
D) $110.50
Answer: C
If 20% of a number is subtracted from the number itself, the result is 80. What is the number?
A) 100
B) 120
C) 140
D) 160
Answer: D
What is 6.25% as a fraction in its lowest terms?
A)
1
16
16
1
B)
1
8
8
1
C)
1
12
12
1
D)
1
20
20
1
Answer: A
If the ratio of men to women in a room is 3:5 and there are 24 women, how many men are there?
A) 12
B) 15
C) 18
D) 20
Answer: A
What is 40% of 200?
A) 40
B) 60
C) 80
D) 120
Answer: C
If the simple interest on a principal of $500 at 8% per annum for 2 years is $80, what is the rate of interest?
A) 5%
B) 6%
C) 8%
D) 10%
Answer: C
Simplify:
2
3
×
3
4
3
2
×
4
3
.
A)
1
2
2
1
B)
1
3
3
1
C)
1
4
4
1
D)
1
6
6
1
Answer: A
If the ratio of students to teachers in a school is 25:1 and there are 500 students, how many teachers are there?
A) 10
B) 15
C) 20
D) 25
Answer: C
What is 15% of 400?
A) 40
B) 50
C) 60
D) 75
Answer: C
Convert 0.625 into a percentage.
A) 6.25%
B) 62.5%
C) 625%
D) 0.0625%
Answer: B
If the profit made on selling an item for $150 is 20%, what is the cost price of the item?
A) $100
B) $120
C) $125
D) $130
Answer: B
What is the compound interest on $2000 at 6% per annum for 3 years, compounded annually?
A) $360
B) $380
C) $400
D) $420
Answer: D
If 25% of a number is added to the number itself, the result is 125. What is the number?
A) 100
B) 120
C) 140
D) 160
Answer: D
What is 8.33% as a fraction in its lowest terms?
A)
1
12
12
1
B)
1
10
10
1
C)
1
8
8
1
D)
1
6
6
1
Answer: A
If the ratio of men to women in a room is 2:3 and there are 15 men, how many women are there?
A) 10
B) 15
C) 20
D) 25
Answer: D
What is 30% of 250?
A) 50
B) 75
C) 100
D) 125
Answer: D
If the simple interest on a principal of $1000 at 6% per annum for 3 years is $180, what is the rate of interest?
A) 4%
B) 5%
C) 6%
D) 8%
Answer: B
Simplify:
4
5
÷
2
3
5
4
÷
3
2
.
A)
6
5
5
6
B)
6
8
8
6
C)
8
5
5
8
D)
10
3
3
10
Answer: C
If the ratio of boys to girls in a class is 3:4 and there are 24 girls, how many boys are there?
A) 12
B) 16
C) 18
D) 20
Answer: B
What is 12.5% as a fraction in its lowest terms?
A)
1
10
10
1
B)
1
8
8
1
C)
1
6
6
1
D)
1
4
4
1
Answer: B
If the selling price of an item is $120 and the loss incurred is 10%, what is the cost price of the item?
A) $108
B) $112
C) $118
D) $125
Answer: A
What is the compound interest on $1500 at 7% per annum for 2 years, compounded annually?
A) $202.50
B) $212.25
C) $215.50
D) $217.35
Answer: B
If 15% of a number is subtracted from the number itself, the result is 170. What is the number?
A) 200
B) 220
C) 240
D) 260
Answer: D
What is 16.67% as a fraction in its lowest terms?
A)
1
6
6
1
B)
1
7
7
1
C)
1
8
8
1
D)
1
12
12
1
Answer: A
If the ratio of students to teachers in a school is 3:2 and there are 60 teachers, how many students are there?
A) 40
B) 90
C) 120
D) 180
Answer: D
What is 18% of 300?
A) 36
B) 48
C) 54
D) 72
Answer: C
If the simple interest on a principal of $800 at 5% per annum for 4 years is $160, what is the rate of interest?
A) 3%
B) 4%
C) 5%
D) 6%
Answer: C
Simplify:
7
8
−
3
8
8
7
−
8
3
.
A)
1
2
2
1
B)
1
4
4
1
C)
4
8
8
4
D)
5
8
8
5
Answer: D
If the ratio of men to women in a room is 5:7 and there are 35 men, how many women are there?
A) 35
B) 40
C) 45
D) 50
Answer: C
What is 25% of 400?
A) 50
B) 75
C) 100
D) 125
Answer: C
If the profit made on selling an item for $200 is 25%, what is the cost price of the item?
A) $150
B) $160
C) $170
D) $180
Answer: A
What is the compound interest on $3000 at 4% per annum for 3 years, compounded annually?
A) $360
B) $380
C) $400
D) $420
Answer: B
If 40% of a number is added to the number itself, the result is 140. What is the number?
A) 90
B) 100
C) 110
D) 120
Answer: D
What is 12.5% as a decimal?
A) 0.0125
B) 0.125
C) 1.25
D) 12.5
Answer: B
If the ratio of boys to girls in a class is 4:5 and there are 36 girls, how many boys are there?
A) 16
B) 20
C) 24
D) 30
Answer: C
What is 22.22% as a fraction in its lowest terms?
A)
1
4
4
1
B)
1
5
5
1
C)
2
9
9
2
D)
1
3
3
1
Answer: C