Here are 20 Multiple Choice Questions (MCQs) with answers, numbered from 21 to 40, for AP DSC 2025 SGT Mathematics (Numbers topic) as per the syllabus from Class III to VIII, with difficulty up to Class X:
AP DSC 2025 SGT Mathematics – Numbers: MCQs (Q.21–40)
Q21. What is the place value of 7 in 3,27,561?
A) 700
B) 70,000
C) 7,000
D) 700,000
Answer: C) 7,000
Q22. Which of the following is a prime number?
A) 15
B) 21
C) 31
D) 51
Answer: C) 31
Q23. The face value of 6 in the number 6,431 is:
A) 6000
B) 6
C) 60
D) 600
Answer: B) 6
Q24. Which number is divisible by both 3 and 5?
A) 15
B) 18
C) 22
D) 45
Answer: A) 15
Q25. What is the HCF of 36 and 48?
A) 12
B) 6
C) 18
D) 24
Answer: A) 12
Q26. Which of the following is not a rational number?
A) -3
B) 0
C) 1/2
D) √2
Answer: D) √2
Q27. The product of any number and 0 is:
A) 1
B) 0
C) The number itself
D) Not defined
Answer: B) 0
Q28. Which of the following is an even number?
A) 13
B) 21
C) 64
D) 57
Answer: C) 64
Q29. The LCM of 4 and 6 is:
A) 12
B) 24
C) 8
D) 6
Answer: A) 12
Q30. A number divisible by both 2 and 3 is also divisible by:
A) 5
B) 4
C) 6
D) 12
Answer: C) 6
Q31. What is the reciprocal of 3/4?
A) 4/3
B) 3/4
C) 1/4
D) -3/4
Answer: A) 4/3
Q32. Which of the following is a composite number?
A) 2
B) 3
C) 11
D) 9
Answer: D) 9
Q33. What is the cube of 3?
A) 9
B) 6
C) 27
D) 81
Answer: C) 27
Q34. The square root of 144 is:
A) 12
B) 14
C) 11
D) 13
Answer: A) 12
Q35. Which of the following is a proper fraction?
A) 5/5
B) 6/4
C) 3/4
D) 9/8
Answer: C) 3/4
Q36. Rational numbers include:
A) Whole numbers only
B) Fractions only
C) Integers only
D) Integers, Fractions, and Whole Numbers
Answer: D) Integers, Fractions, and Whole Numbers
Q37. 0.75 expressed as a fraction is:
A) 3/4
B) 1/2
C) 1/4
D) 7/10
Answer: A) 3/4
Q38. A number that has only two factors (1 and itself) is called:
A) Composite
B) Odd
C) Prime
D) Even
Answer: C) Prime
Q39. The sum of the first 5 odd numbers is:
A) 15
B) 25
C) 10
D) 20
Answer: B) 25
(1+3+5+7+9 = 25)
Q40. The digit in the tens place of 9,743 is:
A) 4
B) 3
C) 7
D) 9
Answer: A) 4
