Asked by Matt

There are 72 boys and 90 girls on a math team. For the next competition, Mr Johnson would like to arrange all the students in equal rows with only girls and only boys in each row. What is the greatest number of students that can be in each row?

Answer: 72 + 90=162
162/2=86

Can you please double check my answer above.
Answered by Ms. Sue
Does your answer make sense?

Answered by Matt
Yes to me it does because you take the total number of people on the team and divide by 2
Answered by Ms. Sue
But you only have 72 boys. Each row has only boys or only girls. So 82 is impossible.

Answered by Steve
consider that 9 divides both 72 and 90
Answered by Matt
I am thinking about this a bit more now I don't feel that my answer was right. It can't be 86 if there are 72 boys and 90 girls. I am going to play around with the numbers a bit and then post a different answer.
Answered by Matt
9 rows with 8 boys each

9 rows with 10 girls each

The greatest number of students that can be in each row would be 18
Answered by Steve
read the question again carefully.

Only boys or girls in each row. Why did you combine them into rows of 18?
Answered by Matt
I was wrong. The greatest number of students that can be in each row is 9 because there would be a total of 18 rows.
Answered by Juan Antonio
You can have 4 rows with 18 boys & 5 rows with 18 girls. It doesn't tell you it has to be exactly an amount of rows, but maximum of students in a row....
Answered by 69
18
Answered by -=`/,.9
this does not make scene can you make it more clear.

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Answered by 234562436
wouldn't it be 9 because 9x8=72 and 9x10=90.
Answered by Jake
No 18 is correct because

72: 1,2,3,4,6,8,9,12,(18),24,36,72
90:1,2,3,5,6,9,10,15,(18),30,45,90

that is the only Greatest Common Factor(GCF) of 72 and 90
Answered by Anonymous
18 i sware i did the work and i also asked dummys
Answered by ur mom
I don’t know if you guys are right but I think it is 18
THANK YOU
Answered by Takahashi 69
Anyone else get this on homework and looking for answers😅
Answered by Igvugcutdu
Online school
Answered by tmi
this was a khan academy question and i got 18 and it was right!!!
Answered by Kayla
I got 18 Too!!!!!!!!!! Thank so much
Answered by hi
18
Answered by akhi
same...
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