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In a seminar the number of participants in Technology, Economics and Science are 150, 90 and 180 respectively. Find the minimum number of rooms required, where in each room the same number of participants are to be seated and all of them being in the same subject.
27
32
30
14
HCF of 150, 90 and 180 = 30 No of participants can be seated in each room = 30
rooms required=150/30+90/30+180/30=5+3+6=14
Hence, option 4 is the correct answer.
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Noorbir Singh
Least/minimum in some questions means LCM so in this question LCM is not required?
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