Question

in a class of 50 children,20%are girls.How many boys are there?​

Answer 1

Answer:

40 boys are there

Step-by-step explanation:

50 childrens

20% girls

20/50=0.4

0.4*100=40

hence 40 in class

Answer 2

Answer:

40 boys

Step-by-step explanation:

given -

total number of students = 50

girls = 20%

to find -

the number of boys

solution -

if there were 20% out of 100% girls, so there were 100%-20% = 80% boys.

80% of total number were boys =

80% of 50 =

80×50/100 =

4000/100 =

4000÷100 =

40

Hence there were 40 students boys.

hope it helps.