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Class 8 Maths Chapter 16 Playing With Numbers Quiz 7 (25 MCQs)

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1. What is the H. C. F. of 12, 18 & 24?
2. Find x in '19x' so that 19x is the greatest 3-digit number and a common multiple of 3 and 5.
3. If the number 25a25 is divisible by 5, what is the value of the digit a?
4. If 15889367 is divisible by say 3 and 7, then what will it be definitely divisible by?
5. Find two numbers whose product is a 1-digit number and the sum is a 2-digit number.
6. Find the value of A, B in the following:A 1+ 2 B ..... B 0
7. Which number is divisible by 10?
8. Which if the following is divisible by 7
9. The number 15287 is divisible by:
10. The least prime numbers with consecutive digits is .....
11. If "5A x A = 399", then the value of A is
12. The numbers which are in p/q form, q not equal to 0 is called?
13. If the 4-digit number 2X Y7 is exactly divisible by 3, then which of the following is the least value of (X + Y)?
14. Find three whole numbers whose product and sum are equal.
15. Generalised form of a four-digit number abdc is:
16. 34 A + Heb = Apartments, I think (a + b-x) = .....
17. Smallest odd composite number
18. If 486*7 is divisible by 9, then the least value of * is .....
19. A pair of two numbers that have no common factor other than 1 are called?
20. Which of the following number is a multiple of 7?
21. Generalised form of a two digit number xy is
22. Second multiple of 7 is
23. Greatest one digit prime number
24. Which of these is not a prime number?
25. The number 2$^{3}$ x 3$^{2}$ is divisible by .....
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