Question

In an entrance examination, out of all the students 90% failed as the level of examination was very tough. The number of students who cleared the examination is 240. How many students wrote the examination?

Answer 1

Answer:

okay so to find so.

we will consider a formula which is

let the number of students be x

and the percentage of students be y

total no be z

100x/y=z

100×240/10=z.............as 10 % students cleared the exam

24000/10=z

z=2400

hence the total no be 2400.

hope it will help u.