Question

in seminar the number of participants maths and science are 175, 140 and 105 respectively. find the minimum no. of rooms required if in each room the same no. of participants are to be seated and all of them being in the same subject.

pls help me for this answer
this is of class 10th​

Answer 1

Answer:

2

Step-by-step explanation:

170+140+105=420

420/210=2

therefore number of peoples in one classroom is 210

Answer 2

Answer:

Pls mark as brainliest if it helps you, friend...   : )

Step-by-step explanation:

The Number of room will be minimum if each room accomodates maximum

number of participants. Since in each room the same number of participants

are to be seated and all of them must be of the same subject. Therefore, the

number of participants in each room must be the HCF of 175, 140 and 105 :

175 = 5 x 5 x 7

140 = 7 x 5 x 2 x 2

105 = 7 x 3 x 5

HCF = 7 x 5 = 35

Therefore, in each room 35 participants can be seated.

Number of rooms required= (Total number of participants) / 35

                                            = ( 175 + 140 + 105 ) / 35

                                            = 420 / 35  

                                            = 12

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