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There are 75 students in a classes A and B altogether. There are 61 students in classes A and C altogether. The ratio of the number of students in Class B to Class C is 5:3. How many students are there in Class A?

 Apr 19, 2021

Best Answer 

 #2
avatar+66 
+3

A+B=75

A+C=61

C*1.6666=B

 

A=61-C

A=75-C*1.666666

 

61-C=75-C*1.6666

C=21


C=21

B=35

A=40

 

There are 40 students in Class A

 Apr 19, 2021
 #1
avatar
-1

Why you again

 Apr 19, 2021
 #2
avatar+66 
+3
Best Answer

A+B=75

A+C=61

C*1.6666=B

 

A=61-C

A=75-C*1.666666

 

61-C=75-C*1.6666

C=21


C=21

B=35

A=40

 

There are 40 students in Class A

BananeroFresquero Apr 19, 2021
 #3
avatar+118586 
0

THX for  that  nice answer, BF !!!

 

I don't think I've seen you before....so....WELCOME ABOARD  !!!!

 

 

cool cool cool

 Apr 19, 2021
 #4
avatar+66 
0

Thanks!

BananeroFresquero  Apr 19, 2021

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