Question

There are 3200 students in a school. If 90% of them are declared Successful in the annual examination ,How many students have failed?
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Answer 1

Answer:

There are 3200 students in a certain school. If 90% of them are declared successful in the annual examination, then 320 students have failed.

Step-by-step explanation:

Method 1.

Given that total number of students in the school is 3200

In annual examination, 90% of 3200 are successful.

Then number of students being successful is

= 90% of 3200

= 90/100 * 3200

= 2880

Therefore the number of students to fail is

= 3200-2880

= 320

Answer 2

Answer:

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