Question

. In a class of 30 students the number of
girls is 1/5th of the number of the boys.
How many boys are there in the class?​

Answer 1

Answer: 24 boys

Step-by-step explanation:

number of students=30

number of girls=1/5×30

=6 girls

Therefore, number of boys=Total students-Total girls

30-6

=24 boys

Answer 2

Answer:

LET THE NO. OF BOYS =X.  

SO ACCORDING TO THE QUESTION.  

NO. OF GIRLS WILL BE 1/5X.  

THERE ARE TOTAL 30 STUDENTS IN THE CLASS .  

NO. OF BOYS + NO. OF GIRLS =30  

SO X+1/5X=30  

MULTIPLY THE EQN BY 5.  

WE GET.  

5X+X=150  

6X=150.  

X=150/6

X=25  

SO THE NO. OF BOYS IN A CLASS = 25.  

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