Question

1200 boys and 600 girls are examined in a test 42% of the boys and 30% of the girls pass find the percentage of those who failed

Answer 1

Answer:

62 %

Step-by-step explanation:

percentage of boys who pass =

$1200 \times \frac{42}{100}$

$42 \times 12$

504 boys passed

percentage of girls who pass =

$600 \times \frac{30}{100}$

$= \: 180 \: girls \: passed$

therefore total number of students who pass = 504 + 180

= 684 passed

total no. of students = 1800

therefore students who fail =

1800 - 684 = 1116 students failed

so percentage of students who fail

$\: = 100 \times \frac{1116}{1800}$

$= \: \frac{1116}{18} = 62 \: \% \: students \: fail$

answer = 62%

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Answer 2

Answer:

62% is the answer

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