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Aptitude :

Problems on H.C.F and L.C.M




1.
Find the HCF of  22x32x72x32x7

128
126
146
434




2.
   Find the HCF of 54, 288, 360

18
36
54
108




3.
What will be the LCM of 8, 24, 36 and 54

126
621
216
324




4.
Find the HCF of 2.1, 1.05 and 0.63

1.1
0.11
0.21
0.34




5.
If LCM of two number is 693, HCF of two numbers is 11 and one number is 99, then find other

24
77
45
68




6.
 LCM of two numbers is 7700 and HCF is 11. If one number is 308 then other number is

125
225
265
275




7.
Which greatest possible length can be used to measure exactly 15 meter 75 cm, 11 meter 25 cm and 7 meter 65 cm

45cm
55cm
65cm
20cm




8.
Find the greatest number which on dividing 1661 and 2045, leaves a reminder of 10 and 13 respectively

145
127
143
146




9.
 Find the largest number which divides 62,132,237 to leave the same reminder

15
35
25
45




10.
Find the largest number of four digits which is exactly divisible by 27,18,12,15

9700
9710
9720
9730




11.
Six bells commence tolling together and toll at the intervals of 2,4,6,8,10,12 seconds resp. In 60 minutes how many times they will toll together.

24
25
33
31




12.
An electronic device makes a beep after every 60 sec. Another device makes a beep after every 62 sec. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest, is

10:28 am
10:30 am
10:31 am
None of above




13.
The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is

15cm
20cm
25cm
35cm




14.
The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is

48
26
37
45




15.
The H.C.F. and L.C.M. of two numbers are 12 and 5040 respectively If one of the numbers is 144, find the other number

400
300
420
320




16.
 Find the greatest number that will divide 400, 435 and 541 leaving 9, 10 and 14 as remainders respectively

10
17
11
15




17.
If the product of two numbers is 84942 and their H.C.F. is 33, find their L.C.M.

2574
2500
1789
1657










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FreshersLive - No.1 Job site in India. Here you can find latest 2016 government as well as private job recruitment notifications for different posts vacancies in India. Get top company jobs for both fresher and experienced. Job Seekers can get useful interview tips, resume services & interview Question and answer. Practice online test free which is helpful for interview preparation. Register with us to get latest employment news/rojgar samachar notifications. Also get latest free govt and other sarkari naukri job alerts daily through E-mail.