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AfilCa [17]
3 years ago
11

In a class there are 40 students 30 are boys and what is the percentage of girls ....​

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0

Answer:

25%

Step-by-step explanation:

Total= 40 students

boys +girls= 40

30 +girls= 40

number of girls

= 40 -30

= 10

Percentage of girls

=  \frac{10}{40}  \times 100\% \\ =  25\%

Alternatively,

percentage of girls

= 100% -(percentage of boys)

= 100\% - ( \frac{30}{40}  \times 100\%) \\  = 100\% - 75\% \\  = 25\%

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