Question

The ratio of boys and girls in a class is 5:3. If 16% of boys and 8% of girls failed in an
examination, then find the percentage of passed students.​

Answer 1

Answer:

87%

Step-by-step explanation:

ratio of boys & girls = 5 : 3

number of boys = 5x

number of girls = 3x

total number = 5x + 3x = 8x

failed boys : 16% of 5x = 80x/100

failed girls : 8% of 3x = 24x/100

number of failed : (80+24)x/100 = 104x/100

number of passed : total - failed

= 8x - 104x/100 = 696x/100

passed% = number of passed × 100/total

passed% = 696x × 100/(100×8x)= 87%

Answer 2

Answer:

its 87%

explaination

is an explaination