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(#M40165037) ELITMUS Numerical Ability question logarithm Keep an EYE

If w,x,y,z are non-zero positive integer, then find the maximum value of (1/w)-(1/x)+(1/y)-(1/z).

Option not remember

Asked In Elitmus Mantu Kumar Singh (7 years ago)

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vijay pandey  (7 years ago)

By logically if...we preserve {(1/w) and (1/y)} and loosing the value of {(1/x) and (1/z)} then only we get max values.

(1/w) and (1/y) will give max value iff w = y = 1;

so, (1/1) - (1/greatest value of x) + (1/1) - (1/greatest value of z)
=> 1 - 0 (tends to 0) + 1 - 0 (tends to 0);
=2-0
=2

Is this solution Helpfull? Yes (17) | No (2)  

shahwaz  (7 years ago)

0 will be the answer...

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Rahul Yadav  (6 years ago)

W=1 Y=1, x=-1,Y=-1

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