Basic Math Quiz-01

1. What is the HCF of 40 and 60?

2. Which of the following is prime?

3. If the sum of two even digits is 10. Which of the following could be the product of these two digits?

4. What is the greatest number less than 100?

5. What is the maximum two digit integer having distinct digits?

6. If a, b, and c are non-positive integers, which of the following cannot be true?

    I. abc (i.e. a × b × c) is positive
    II. ab is positive
    III. a + b + c is positive

7. If the product of two integers x and y is even, which of the following must be true?

    I. x + y is even
    II. x + y is odd
    III. xy + 1 is odd

8. Find H.C.F of 210, 120, and 60 ?

9. If the sum of 7 consecutive integers integers is 450, what is the least of those seven integers?

10. If a, b, c, d and e are consecutive integers, which of the following must be true?

    I. ab + cd is even
    II. ac + bd is even
    III. ac + b + d is even

11. What will be the result when 32.499 is rounded to nearest integer?

12. Which of the following fraction is the greatest? (Don't use calculator, just use mind please)

13. Which of the following is divisible by 3?

14. Which of the following is divisible by 6?

15. Which of the following is a factor of 16?

16. Which of the following is least? (Don't use calculator, just use mind please)

17. What is the L.C.M of 40 and 60?

18. Which of the following is factor of 36?

19. Which of the following is prime factor of 420?

20. (¹⁰⁄₂₄) ÷ (¹⁵⁄₃₆) = ?