CBSE Class 8 Maths MCQs on Divisibility Rules and Tests of Divisibility
CBSE Class 8 Maths MCQs on Divisibility Rules and Tests of Divisibility
Class: 8
Subject: Mathematics
Chapter 5: Number Play
Topic: Divisibility Rules, Factors & Multiples
Subject: Mathematics
Chapter 5: Number Play
Topic: Divisibility Rules, Factors & Multiples
Strictly Based on CBSE Curriculum | As per NCERT Textbook | Ideal for CBSE Class 8 Examination Preparation
Q1. A number is divisible by 2 if:
Correct Answer: A) It ends in 0,2,4,6 or 8
Explanation: Any number with even last digit is divisible by 2.
Explanation: Any number with even last digit is divisible by 2.
Q2. A number is divisible by 3 if:
Correct Answer: B) Sum of digits divisible by 3
Explanation: Add all digits. If the sum is divisible by 3, the number is divisible by 3.
Explanation: Add all digits. If the sum is divisible by 3, the number is divisible by 3.
Q3. A number is divisible by 5 if:
Correct Answer: A) Last digit 5 or 0
Explanation: Divisibility rule of 5.
Explanation: Divisibility rule of 5.
Q4. A number is divisible by 9 if:
Correct Answer: B) Sum of digits divisible by 9
Explanation: Same pattern as rule for 3 but check divisibility by 9.
Explanation: Same pattern as rule for 3 but check divisibility by 9.
Q5. A number is divisible by 10 if:
Correct Answer: A) Last digit 0
Explanation: All multiples of 10 end in 0.
Explanation: All multiples of 10 end in 0.
Q6. 234 is divisible by 3 because:
Correct Answer: B) 2+3+4=9 divisible by 3
Explanation: 9 is divisible by 3.
Explanation: 9 is divisible by 3.
Q7. 560 is divisible by:
Correct Answer: D) All of these
Explanation: Ends in 0 so divisible by 2, 5 and 10.
Explanation: Ends in 0 so divisible by 2, 5 and 10.
Q8. 729 is divisible by 9 because:
Correct Answer: B) 7+2+9=18 divisible by 9
Explanation: 18 is divisible by 9.
Explanation: 18 is divisible by 9.
Q9. A number divisible by both 2 and 5 is divisible by:
Correct Answer: C) 10
Explanation: LCM of 2 and 5 is 10.
Explanation: LCM of 2 and 5 is 10.
Q10. 345 is divisible by:
Correct Answer: C) Both A and B
Explanation: 3+4+5=12 divisible by 3 and ends in 5.
Explanation: 3+4+5=12 divisible by 3 and ends in 5.
Q11. 111 is divisible by:
Correct Answer: A) 3
Explanation: 1+1+1=3 divisible by 3 but not 9.
Explanation: 1+1+1=3 divisible by 3 but not 9.
Q12. 1000 is divisible by:
Correct Answer: D) All
Explanation: Ends in 0.
Explanation: Ends in 0.
Q13. 456 is divisible by 2 because:
Correct Answer: A) Last digit 6
Explanation: 6 is even.
Explanation: 6 is even.
Q14. If sum of digits is multiple of 9, number is divisible by:
Correct Answer: C) Both 3 and 9
Explanation: Every multiple of 9 is also multiple of 3.
Explanation: Every multiple of 9 is also multiple of 3.
Q15. A number ending in 8 is divisible by:
Correct Answer: A) 2
Explanation: Even last digit rule.
Explanation: Even last digit rule.
Q16. 225 is divisible by:
Correct Answer: C) Both A and B
Explanation: Ends in 5 and 2+2+5=9.
Explanation: Ends in 5 and 2+2+5=9.
Q17. Smallest 3-digit number divisible by 5 is:
Correct Answer: A) 100
Explanation: 100 ends in 0.
Explanation: 100 ends in 0.
Q18. If last digit is 0, number is divisible by:
Correct Answer: D) All
Explanation: Ends in 0 rule.
Explanation: Ends in 0 rule.
Q19. 864 is divisible by 3 because:
Correct Answer: B) 8+6+4=18 divisible by 3
Explanation: 18 divisible by 3.
Explanation: 18 divisible by 3.
Q20. 999 is divisible by:
Correct Answer: C) Both
Explanation: 9+9+9=27 divisible by 9 and 3.
Explanation: 9+9+9=27 divisible by 9 and 3.
