Question

1. The ratio of passed to failed students in a school is 7:1. If
the total number of students in the school is 7200, then
what is the number of failed students? (Each of the
student has taken the examination)
(1) 900
(2) 1200
(3) 1140
(4) Cannot be determined
(5) None of these​

Answer 1

Answer:

1)900.......

Step-by-step explanation:

The failed student's number must be 7 times less than the passed student's number bcoz the ratio is 7:1.

Then,the total ratio is:7+1=8

Then the failed student's number is:-7200÷8=900.......

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Answer 2

Answer:

900

Step-by-step explanation:

let the total no. of students be 'x'

also ,the ratio of passed and failed students is 7:1

therefore,

7x+1x=7200

8x=7200

x=7200 /8

so...x=900

the passed students is

7x=7 *900=6300

and the no. of failed students is

1x=1*900

= 900