Question

There are 30 students in a classroom. The ratio of boys to women is2:3 .

Some additional women enter the classroom, and the ratio of boys to women is now 1:5. How many women entered the classroom?

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Total Students=30

Ratio=2:3

Let total no. of boys=2x

Let total no. of girls=3x

solving we get

2x+3x=30

5x=30

x=6

Total boys=2x=2(6)=12

Total girls=3×=3(6)=18

Let the no. of womens added to the class=y

then ratio=1:5

therefore

1:5=12:(18+y)

18+y=5×12

18+y=60

y=60-18

y=42

No. of womens added to get the ratio 1:5=42