Learn and Practice Free HCF and LCM Set 1 questions
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444 / 629 when expressed in lowest terms is:
Option 1: 12/17
Option 2: 11/19
Option 3: 12/37
Option 4: 13/37
Option 5:
The smallest number which when diminished by 3 is divisible by 21, 28, 36 and 45 is
Option 1: 1223
Option 2: 1263
Option 3: 1258
Option 4: 1260
Option 5:
The largest number which divides 25, 73 and 97 to leave the same remainder in each case is
Option 1: 24
Option 2: 21
Option 3: 23
Option 4: 6
Option 5:
2² * 3³ * 5⁵ , 2³ * 3² * 5² * 7 and 2⁴ * 3⁴ * 5 * 7² *11 is
Option 1: 2² * 3² * 5² * 7 * 11
Option 2: 24 * 34 * 54
Option 3: 2² * 3² * 5
Option 4: 24 * 34 * 55 * 7 * 11
Option 5:
Three numbers are in the ratio 1: 2 : 3 and their H.C.F. is 12. The numbers are:
Option 1: 12, 24, 36
Option 2: 5, 10, 15
Option 3: 10, 20, 30
Option 4: 4, 8 12
Option 5:
The H.CF. of these numbers two numbers is 11 and their L.C.M. is 7700. If one is 275, then the other one is.
Option 1: 283
Option 2: 318
Option 3: 308
Option 4: 279
Option 5:
The H.C.F. and L.C.M. of two numbers are 50 and 250respectively. If the first number is divided by 2, the quotient is 50. The second number is
Option 1: 50
Option 2: 125
Option 3: 250
Option 4: 100
Option 5:
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
Option 1: 10.30 am.
Option 2: 10.59 a.m.
Option 3: 10.31 am.
Option 4: 11 a,m.
Option 5:
About the number of pairs which have 16 as their H.C.F. and 136 as their L.C.M., we can definitely say that :
Option 1: only one such pair exists
Option 2: many such pairs exist
Option 3: only two such pairs exist
Option 4: no such pair exists
Option 5:
What is the greatest number of three digits which when divided by 6, 9 and 12 leaves a remainder of 3 in each case.
Option 1: 975
Option 2: 939
Option 3: 996
Option 4: 972
Option 5:
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