Question

In a seminar, the number of participants in hindi, English and mathematics are 60,84 and 108 respectively.find the maximum number of rooms required if in each room the same number of participants are to be seated and all of them being in the same sunject

Answer 1

the number of participants in each room must be the HCF of 60, 84 and 108.

so by euclid's division lemma,

108= 84*1+24

84= 24*3+12

24=12*2

therefore, the HCF of 108 and 84 is 12.

similarly the HCF of 60 and 84 will be 12.

therefore in each room, 12 members can sit.

total number of participants= 60+84+108=252

number of rooms required$=\frac{totalstudents}{numberofstudentsinoneroom}$

$=\frac{252}{12}=21$

therefore 21 rooms are required.