Question

out of 40 student in class, 10 are boys what is the percentage of girl in class

Answer 1

Answer:

$30 \div 40 \times 100 = 300 \div 4 \\ 75$

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Answer 2

Answer:

10 are boys ...so 30 are girls

percentage of girls in class=(30/40)×100= 30×100/40=( 30×10)/4= 7.5×10= 75 percent