EMA1501 ASSIGNMENT 4 DUE
SEPTEMBER 2026
Course
EMA1501 (EMA1501)
1. Which number is a prime number?
A. 17
B. 21
C. 27
D. 35
Answer: A
Solution: A prime number has exactly two positive factors: 1 and itself. The factors of 17 are 1
and 17.
2. What is the value of 8×(12−7)8 \times (12 - 7)8×(12−7)?
A. 40
B. 35
C. 48
D. 56
Answer: A
Solution: Evaluate the brackets first: 12−7=512 - 7 = 512−7=5. Then multiply: 8×5=408 \times 5
= 408×5=40.
3. Which fraction is equivalent to 34\frac{3}{4}43?
A. 68\frac{6}{8}86
B. 46\frac{4}{6}64
C. 58\frac{5}{8}85
D. 916\frac{9}{16}169
Answer: A
Solution: Multiplying the numerator and denominator by 2 gives 68\frac{6}{8}86, which is
equivalent to 34\frac{3}{4}43.
,4. What is 25% of 160?
A. 40
B. 25
C. 35
D. 45
Answer: A
Solution: 25%=2510025\% = \frac{25}{100}25%=10025. Therefore, 0.25×160=400.25 \times 160
= 400.25×160=40.
5. Which property is illustrated by 5+8=8+55 + 8 = 8 + 55+8=8+5?
A. Commutative property of addition
B. Associative property
C. Distributive property
D. Identity property
Answer: A
Solution: The commutative property states that numbers can be added in any order.
6. What is the greatest common factor (GCF) of 18 and 24?
A. 6
B. 8
C. 12
D. 18
Answer: A
Solution: The common factors are 1, 2, 3, and 6. The greatest is 6.
7. Solve: 45÷545 \div 545÷5.
A. 9
B. 8
, C. 10
D. 11
Answer: A
Solution: 45÷5=945 \div 5 = 945÷5=9.
8. What is the perimeter of a rectangle with length 8 cm and width 5 cm?
A. 26 cm
B. 40 cm
C. 13 cm
D. 30 cm
Answer: A
Solution: Perimeter = 2(l+w)=2(8+5)=262(l+w)=2(8+5)=262(l+w)=2(8+5)=26 cm.
9. Which decimal is equal to 12\frac{1}{2}21?
A. 0.5
B. 0.25
C. 0.2
D. 0.75
Answer: A
Solution: One-half expressed as a decimal is 0.5.
10. What is 727^272?
A. 49
B. 14
C. 21
D. 56
Answer: A
Solution: 72=7×7=497^2 = 7 \times 7 = 4972=7×7=49.
SEPTEMBER 2026
Course
EMA1501 (EMA1501)
1. Which number is a prime number?
A. 17
B. 21
C. 27
D. 35
Answer: A
Solution: A prime number has exactly two positive factors: 1 and itself. The factors of 17 are 1
and 17.
2. What is the value of 8×(12−7)8 \times (12 - 7)8×(12−7)?
A. 40
B. 35
C. 48
D. 56
Answer: A
Solution: Evaluate the brackets first: 12−7=512 - 7 = 512−7=5. Then multiply: 8×5=408 \times 5
= 408×5=40.
3. Which fraction is equivalent to 34\frac{3}{4}43?
A. 68\frac{6}{8}86
B. 46\frac{4}{6}64
C. 58\frac{5}{8}85
D. 916\frac{9}{16}169
Answer: A
Solution: Multiplying the numerator and denominator by 2 gives 68\frac{6}{8}86, which is
equivalent to 34\frac{3}{4}43.
,4. What is 25% of 160?
A. 40
B. 25
C. 35
D. 45
Answer: A
Solution: 25%=2510025\% = \frac{25}{100}25%=10025. Therefore, 0.25×160=400.25 \times 160
= 400.25×160=40.
5. Which property is illustrated by 5+8=8+55 + 8 = 8 + 55+8=8+5?
A. Commutative property of addition
B. Associative property
C. Distributive property
D. Identity property
Answer: A
Solution: The commutative property states that numbers can be added in any order.
6. What is the greatest common factor (GCF) of 18 and 24?
A. 6
B. 8
C. 12
D. 18
Answer: A
Solution: The common factors are 1, 2, 3, and 6. The greatest is 6.
7. Solve: 45÷545 \div 545÷5.
A. 9
B. 8
, C. 10
D. 11
Answer: A
Solution: 45÷5=945 \div 5 = 945÷5=9.
8. What is the perimeter of a rectangle with length 8 cm and width 5 cm?
A. 26 cm
B. 40 cm
C. 13 cm
D. 30 cm
Answer: A
Solution: Perimeter = 2(l+w)=2(8+5)=262(l+w)=2(8+5)=262(l+w)=2(8+5)=26 cm.
9. Which decimal is equal to 12\frac{1}{2}21?
A. 0.5
B. 0.25
C. 0.2
D. 0.75
Answer: A
Solution: One-half expressed as a decimal is 0.5.
10. What is 727^272?
A. 49
B. 14
C. 21
D. 56
Answer: A
Solution: 72=7×7=497^2 = 7 \times 7 = 4972=7×7=49.
