H.C.F.-and-L.C, MCQ (Free PDF)


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1. Two numbers are in the ratio 2 : 3. If their L.C.M. is 48. what is sum of the numbers?
A. 28
B. 40

C. 64
D. 42
Answer : Option B

2. What is the greatest number of four digits which is divisible by 15, 25, 40 and 75 ?
A. 9800
B. 9600
C. 9400
D. 9200
Answer : Option B

3. Three numbers are in the ratio of 2 : 3 : 4 and their L.C.M. is 240. Their H.C.F. is:
A. 40
B. 30
C. 20
D. 10
Answer : Option C

4. What is the lowest common multiple of 12, 36 and 20?
A. 160
B. 220
C. 120
D. 180
Answer : Option D

5. What is the least number which when divided by 5, 6, 7 and 8 leaves a remainder 3, but when
divided by 9 leaves no remainder?
A. 1108
B. 1683
C. 2007
D. 3363
Answer : Option B

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