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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
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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

B=35

A=40

 

There are 40 students in Class A

 Apr 19, 2021
edited by BananeroFresquero  Apr 19, 2021

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