Question

in a class of 60 students ,30% are boys. Find the number of girls in the class?

Answer 1

Answer:

42

Step-by-step explanation:

number of boys = 30/100×60 = 18

number of girls = total students - number of boys

= 60 - 18 = 42

Answer 2

From the given question the correct answer is:

the number of girls in the class is 42.

Given:

in a class of 60 students

30% are boys

To find:

the number of girls in the class

Solution:

we have to find  the number of girls in the class

Given that, 30% are boys

the number of boys= 30% of total student

                                     $=\frac{30}{100} \times 60\\\\=18$

Hence, the number of boys in the class is 18.

Now, we have to find  the number of girls in the class

so, we will subtract the number of boys from the total student.

∴no. of girls= 60-18

                   =42

Hence, the number of girls in the class is 42.