Question

A candidate in a examination was asked to find 5/14 of a certain number,by mistke he found 5/4 of it.thus his answer was 25 more than the correct answer .the number was

Answer 1

Let that certain number be 'y'

asked to find (5/14)y

he found by mistake (5/4)y

given,

(5/4)y=(5/14)y+25

[5/4-5/14]y =25

5[1/4-1/14]y=25

[1/4-1/14]y=25

y=28