Question

there are 2200 students in a certain school. 80% of them declaired successful in the annual examination. how many students are faled?​

Answer 1

Answer:

Given that total number of students in the school is 2500

In annual examination, 90% of 2500 students are successful.

Then (100 - 90)% = 10% of 2500 have failed in the examination.

i.e., 10% of 2500

= 10/100 * 2500

= 250 students have failed.

Step-by-step explanation:

pls like this answer & helpful