Math, asked by ayannaskar3640, 9 months ago

Out of 8000 candidates, 60% were boys. If 80% of the boys and 90% of the girls passed
the exam, find the number of candidates who failed.​

Answers

Answered by Thegreatarrav
45

Answer:

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Answered by abhi569
42

Answer:

1280

Step-by-step explanation:

There were 8000 candidates:

60% were boy, so the remaining 100% - 60% must be girls.

So,

No. of boys = 60% of 8000 = (60*8000/100) = 4800

No. of girls = 8,000 - 4800 = 3200.

80% of boys passed, means 20% of 4,800 are failed.

Failed boys = 20% of 4800 = (20*4800)/100) = 960

90% of girls passed, means 10% of 3200 are failed,

Failed girls = 10% of 3200 = (10*3200/100) = 320

Failed candidates = 960 + 320 = 1280

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