Question

The ratio of boys to girls is 5:4. Which of the following cannot be the number of students in the class,,,



Here are the options
a)45 b)72 c)108 d)98


Step by step explanation, please

Answer 1

Answer:

b), c) & d)

Step-by-step explanation:

there is obviously no need for a step by step explanation cause everyone knows that maximum 45 students are possibly there in each class not more than that. So I hope this helps

Answer 2

Step-by-step explanation:

Let the required ratio be x.

Given that number of boys in the class = 11x.

Given that number of girls in the class =

13x. Given that 8 girls and 4 boys joined in the

class.

Therefore the number of girls = 13x + 8

the number of boys = 11x + 4.

Given that the ratio becomes 4:5.

(13x + 8)/(11x + 4) = 5/4

(13x + 8) * 4 = 5(11x + 4)

52x + 32 = 55x + 20

-3x = -12

x = 4.

Number of girls = 13x + 8

= 13(4) + 8

= 60.

Number of boys = 11(4) + 4

= 44 + 4

= 48.

Therefore the number of students = 60

+ 48

= 108

Hope this helps!