IBM Company Numerical Ability Ratio and Proportion

In an auditorium, the ratio of the number of girls to the number of boys was 5:9. When 203 girls entered the auditorium, the new ratio of the number of girls to the number of boys became 4:3. How many pupils were in the auditorium at first?

Read Solution (Total 1)

Ans: 406
Exp:
Ratio of G & B = 5:9
Now entered 203 G
5x+203/9x=4/3
after solve it....
x=29
Now find the Total pupils first= 29*14=406
11 years agoHelpfull: Yes(6) No(3)

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