exam
Maths Puzzle
Numerical Ability
Find the solutions to the equation x-5/x= 4.
Read Solution (Total 1)
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- if its (x-5)/x=4 then,
x-5=4x
-5=3x
x=-5/3
and if its x-5/x=4 then,
x^2-5=4x
x^2-4x-5=0
x^2-5x+x-5=0
x(x-5)+1(x-5)=0
(x+1)(x-5)=0
x+1=0 or x-5=0
x=-1 0r x=5
we get two solutions
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