Basic Math Quiz-01 Instructor Welcome to your Basic Math Quiz-01 Name Email 1. What is the HCF of 40 and 60? 10 12 20 24 40 None 2. Which of the following is prime? 33 43 51 87 91 None 3. If the sum of two even digits is 10. Which of the following could be the product of these two digits? –24 0 8 12 16 None 4. What is the greatest number less than 100? 90 99 99.9 99.99 Cannot be determined. None 5. What is the maximum two digit integer having distinct digits? 11 89 98 99 Cannot be determined. None 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 I Only II Only III Only I & II Only I & III Only None 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 I Only II Only III Only I & II Only I & III Only None 8. Find H.C.F of 210, 120, and 60 ? 10 20 30 40 60 None 9. If the sum of 7 consecutive integers integers is 450, what is the least of those seven integers? 54 59 61 67 73 None 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 I Only II Only III Only I & II Only I & III Only None 11. What will be the result when 32.499 is rounded to nearest integer? 32 32.5 33 33.5 None 12. Which of the following fraction is the greatest? (Don't use calculator, just use mind please) 3⁄5 5/7 9/11 11/13 16/19 None 13. Which of the following is divisible by 3? 912356 927643 947628 958643 985466 None 14. Which of the following is divisible by 6? 4596362 4632783 4736613 4787592 4869692 None 15. Which of the following is a factor of 16? 3 6 8 12 14 None 16. Which of the following is least? (Don't use calculator, just use mind please) 99/100 999/1000 9999/10000 100/101 1000/1001 None 17. What is the L.C.M of 40 and 60? 60 80 90 100 120 None 18. Which of the following is factor of 36? 8 9 10 16 24 None 19. Which of the following is prime factor of 420? 1 7 11 17 21 None 20. (^{10}⁄_{24}) ÷ (^{15}⁄_{36}) = ? –2 –1 0 1 2 None Please fill in the comment box below.

please explain question no 2 9 12 16 19

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Kindly explain question no 16

there is a typo in question 9.

450 should be 490

Yeah, you are correct

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