Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Experience the convenience of getting reliable answers to your questions from a vast network of knowledgeable experts. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

In a maths class the girl to boy is 7:5 If there are 20 boys how many girls are in the class


Sagot :

Answer:

Let the total no of girls be x

the number of boys=7:5

total no of students =20

now,

no of girls =7/5=x/20

or, 20*7=5x

or 140=5x

or,x=140/5=28

therefore the number of girls =28

5x4=20 boys
So that means
7x4=28 girls