Answers

2014-09-20T23:11:59+05:30
Let the no be x and its reciprocal be 1/x
x-4/x=3
⇒x²-4=3x
⇒x²-3x-4=0
(x-4)(x+1)=0
so the no is 4 or -1
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2014-09-20T23:17:31+05:30
Let the no. be x
Then, reciprocal is 1/x
x-4/x=3
⇒x²-4=3x
⇒x²-3x-4=0
Pairing up,
(x-4)(x+1)=0

Thus x-4 =0
Therefore x= 0+4=4

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