Question

in a class of 42 pupils ,3/7 is boys,another 4 boys join the class ,what is the fraction of the boys in the class now?

Answer 1

Answer:

11/23

Step-by-step explanation:

Number of students in the class = 42

Boys = 3/7 of 42

= 3 x 6

= 18 boys

If 4 more boys join, number of boys = 18 + 4 = 22 boys

Number of students in the class = 42 + 4 = 46 students

so,

Fraction of boys = Number of boys/Number of students

= 22/46

= 11/23

Hope this Helps!

Answer 2

Answer:

11 upon 23

Step-by-step explanation:

Number of boys in the class = 3 upon 7 multiplied by 42 = 18

Number of boys that joined the class = 4 = 18+4 = 22

Therefore,fraction = 22 upon 46 = 11 upon 23

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