Question

the total no.of students in class 5 is 50.out of them 60% are boys .how many girl's are there in class​

Answer 1

Answer:

20girls

Step-by-step explanation:

Total students=50

Boys=50*60%

        =50*60/100

        =30

Number of girls = Total students - Boys

                          =50-30

                            =20

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Answer 2

Number of girls in the class is 20

Step-by-step explanation:

GIVEN

Total value = 50

Percent = 60%

___________________________

To Find

Number of girls in the class

___________________________

We know that,

Percent = part / whole × 100

Part value = Percent × whole / 100

Part value = 60 × 50 / 100

Part value = 3000 / 100

Part value = 30

Part value = 30

Number of boys in the class is 30

Now,

Let's find the number of girls in the class

Girls = Total students - Boys

Girls = 50 - 30

Girls = 20

Number of Girls = 20

Number of girls in the class is 20

___________________________

Important

If part value and total value is given and we need to find percent

Then,

Percent = part / whole × 100

If percent and total value is given and we need to find part value

Then,

Part value = percent × whole / 100

If percent and part value is given and we need to find part value

Then,

Whole = part / percent × 100