Question

Sum of two numbers is 45.And product of it is 125 find sum of reciprocal

Answer 1

x+y=45
xy=125
(1/x)+(1/y)=(x+y)/xy
=45/125
=9/25

Answer 2

THANKS FOR THE QUESTION !

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GIVEN :

SUM OF TWO NO. :

=> 45

PRODUCT OF TWO NO. :

=> 125

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TO FIND :

=> SUM OF THEIR RECIPROCALS :

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LET,

=> FIRST NO. BE :

=> X

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2ND NO . BE :

=> Y

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FROM THE INFO :

=> X + Y = 45

=> X * Y = 125

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THE RECIPROCAL OF X :

=> 1 / X

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THE RECIPROCAL OF Y :

=> 1 / Y

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SUM OF THEIR RECIPROCALS :

=> 1 / X + 1 / Y :

=> 1 * Y + 1 * X / X * Y

=> X + Y / X * Y

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=> BUT WE HAVE THE VALUES OF X + Y AND X * Y

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SUM OF RECIPROCALS :

=> 45 / 125

=> 9 / 25

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HOPE IT WILL HELP U ......

THANKS AGAIN ........

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