Assessment Exam Category

hree 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

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Assessment Other Question

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