Question

In an examination 90% of the total examinees passed. If the number of
failure is 30, the total examinees were
250 (b) 350
(c) 200
(d) 300​

Answer 1

200-90 = 10%

so failure %=10

failure no=30

let the total examinees be x

so

10 % of x = 30

10/100x = 30

x = 300

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