Question

21. In a class, the ratio of the number of boys to that of girls is 4:3 .If
the number of girls is 15 , find :
(i)the number of boys
(ii) the total number of students in the class
​

Answer 1

Answer:1=20

2=20+15=35

Step-by-step explanation:

Answer 2

THE RATIO OF BOYS AND GIRLS IN A CLASS=4:3

ACCORDING TO THE PROBLEM,

THE NUMBER OF GIRLS =15

LET,THE NUMBER OF BOYS =X

4:3=X:15

4×15=3×X

60=3X

X=60÷3

X=20

1)THE NUMBER OF BOYS =20

2)THE TOTAL NUMBER OF STUDENTS IN THE CLASS =20+15=35

I HOPE IT IS CORRECT

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