5. Three numbers are in the ratio 3: 4:5 and their LCM is 1200. Then, their HCF
is
(a) 40
(b) 60
(c) 20
(d) 120
Short Answer Type Questions
(1 mark each
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answer is 20
(3×4×5)x = 1200
60x =1200
x = 1200÷60
= 20
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