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1. HCF of 36, 48, 72 is
a] 6 b] 12 c] 18 d] 36
2. HCF of 4059 and 2190 is
a] 0 b] 3 c] 9 d] 6
3. Three numbers 2261, 2527, and 1653 are divisible by highest common factor x then x is equal to
a] 133 b] 19 c] 78 d] 0
4. HCF of 1056, 1584 and 2178 is
a] 56 b] 66 c] 76 d] 16
5. If 24, 48, 96 are divisible by 6, 12 and 24 then their HCF is
a] 6 b] 12 c] 24 d] 0
6. If two numbers are in the ratio of 7:9 and their HCFis 8 then the numbers are
a] 70, 90 b] 14, 18 c] 56, 72 d] 21, 27
7. HCF of 1037 and 1159 is
a] 61 b] 71 c] 122 d] 98
8. HCF of three numbers ar7, ar5, ar3 is
a] ar2 b] ar c] ar3 d] ar4
9. HCF of 0.025, 0.375, 0.5 is
a] 0.5 b] 0.025 c] 0.05 d] 0.00253
10. 0.001, 0.0020 and 0.01 have highest common factor
a] 0.001 b] 0.1 c] 2.0 d] 0.0002
11. HCF of  and  is
a]  b]  c]  d] 
12. There numbers are in the ratio 5:6:7 and their HCF is 11then numbers are
a] 25, 36, 49 b] 55, 66, 77 c] 35, 42, 49 d] 50, 60, 70
13. HCF of 22 × 32 × 53 × 74 and 2 × 32 × 72 × 5 is
a] 2 × 3 × 5 × 7 b] 22 × 32 × 53 × 74 c] 2 × 32 × 5 × 72 d] 2 × 32 × 52 × 72
14. HCF of  ,  ,  is
a]  b]  c]  d] 
15. The smallest number which will divide 412, 753 and 1032 so as to leave remainder 9 in each case is
a] 26629680 b] 26680296 c] 266296 d] 80296
16. The greatest number which divides 218 and 184 leaving remainders 2 and 4 is
a] 36 b] 16 c] 6 d] 26
17. If we add a number x to both 1090 and 1163 then their HCF is 73 then x is
a] 25 b] 5 c] 10 d] 45
18. HCF of 1.46, 3.65 and 5.84 is
a] 0.37 b] 0.39 c] 0.73 d] 0.46
19. If sum of two numbers is 120 and their HCF is 8 then numbers are
a] 56, 64 b] 70, 50 c] 20, 100 d] 40, 80
20. HCF of  and  is
a]  b]  c]  d] 
21. LCM of 32, 36, 48 is
a] 96 b] 98 c] 196 d] 288
22. LCM of 2, 3, 4, 5, 6 is
a] 10 b] 60 c] 30 d] 42
23. The smallest number leaves 4 everytime when divided by 6, 7, 8, 9 and 10. Find that number.
a] 2524 b] 2516 c] 1620 d] 1625
24. LCM of 18, 32 and 40 is
a] 440 b] 1140 c] 1440 d] 1040
25. LCM of 52 and 78 is
a] 26 b] 13 c] 156 d] 78
Answers :-
1. b 2. b 3. b 4. b 5. c 6. c 7. a 8. c 9. b 10. a 11. b 12. b 13. c 14. a 15. b 16. a 17. b 18. c 19. a 20. a 21. d 22. b 23. a 24. c 25. c |
