Question

The number of students in 3 classes is in the ratio 2:3:4. If 12 students are increased

in each class this ratio changes to 8:11:14. The total number of students in the three

classes in the beginning was:​

Answer 1

Answer:

Step-by-step explanation:

Let the number of students in the classes be 2x, 3x and 4x respectively;

Total students = 2x+3x+4x = 9x.

Accordingtothequestion,(

2x+12)/(3x+12)=8/11

24x+96=22x+132

Or,2x=132−96

Or,x=362=18

Nence,Originalnumberofstudents,

9x=9×18=162

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