Mathematical operations key

Mathematical operation-2

Mathematical operation-1

LCM & HCF ONLINE EXAM

LCM & HCF

PALLA SATYANARYANA

1. LCM of 12, 15 and 18

150
180
120
200


2. HCF of 18, 27 and 81 is

9
18
27
45


3. LCM of 25, 30 and 45 is

5
450
900
2250


4. LCM of 26, 56, 104, 182 is

324
728
758
1092


5. The HCF of two numbers is 15 and their LCM is 300. If one number is 60, the other is

50
75
65
100


6. LCM of 7/90 , 14/15 and 7/10 is

7/90
14/5
28/90
14/90


7. The HCF of 5/6 , 10/18 , 25/36 is

5/36
25/6
25/36
5/18


8. Three bells toll at the internals of 12, 15 and 18 minutes respectively. If all the three Ring at 8 am then they ring all together all

9 am
10 am
11 am
1 pm


9. Ratio of two numbers is 5:7 and their LCM is 350, find the smaller number?

50
60
70
75