Question

A total of 90 students are in a class with the number
of boys to the number of girls in the ratio of 5 : 4.
number of boys and number
of autoined the class and now the ratio of the
of boys to that of girls is 4: 3. Which of the
og pairs of values satisfy the given blanks?​

Answer 1

Answer:

1

1

2

In a class of 90 students, numbers of boys are twice the number of girls. Kate is 58th from the left end and there are 20 boys to the right of Kate, then the number of girls to the left of Kate?

When children get 10x more attention than at school, it shows.

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Yoshitha Reddy

Answered April 22, 2019

Let number of boys be x

And number of girls be y

Given x = 2y

And x + y = 90

=> 2y + y = 90

=> 3y = 90

=> y = 30

=> x = 60

And to the right of Kate there are 20 boys and that means the remaining 60 - 20 = 40 boys are standing onto her left.

As Kate is 58th girl, there are 58 -40 = 18

And excluding Kate , 18 - 1 = 17 girls to the left of her.