IBM
Company
Numerical Ability
Algebra
If the following statements are given
(x#y) = x + y- xy
(x*y) = (x + y)/2
i) Find the values of x, y will satisfy this equation (x#y)#(x*y) < (x#y)
ii) Find the values of x, y will satisfy this equation (a*b)#(b*c)< (a#b)*(b*c)
Read Solution (Total 5)
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- (x#y)#(x*y) < (x#y);(x+y-xy)+(x+y)/2 - (x+y-xy)(x+y)/2 < x+y-xy;
(x+y)/2-(x+y-xy)(x+y)/2 < 0;(x+y)/2*(1-x-y+xy);so ovral going tobe negtv when x and y both are negative no. becoz 1-x-y+xy iz going to be positive for all x and y
but if both r of appst sign then no conclsn can be drawn so"ALL -VE NO." - 12 years agoHelpfull: Yes(2) No(5)
- ata hi to cmnt kAR HAWA ME TIR MAR MAR
- 10 years agoHelpfull: Yes(1) No(0)
- (x#y)#(x*y) < (x#y)
(x+y-xy)+(x+y)/2 - (x+y-xy)(x+y)/2 < x+y-xy
(x+y)/2-(x+y-xy)(x+y)/2 < 0
(x+y)/2*(1-(x+y-xy)) - 12 years agoHelpfull: Yes(0) No(9)
- (x#y)#(x*y) < (x#y)
(x+y-xy)+(x+y)/2 - (x+y-xy)(x+y)/2 < x+y-xy
(x+y)/2-(x+y-xy)(x+y)/2 < 0
(x+y)/2*(1-x-y+xy) - 12 years agoHelpfull: Yes(0) No(3)
- (x#y)#(x*y) < (x#y)
(x+y-xy)+(x+y)/2 - (x+y-xy)(x+y)/2 < x+y-xy
(x+y)/2-(x+y-xy)(x+y)/2 < 0
(x+y)/2*(1-x-y+xy) - 12 years agoHelpfull: Yes(0) No(3)
IBM Other Question
If the following statements are given
@(a,b)= (a+b)/2
/(a,b)= a/b
*(a,b)= ab
If a=1, b=2 then find
i) /(a,(@(a,b),*(a,b)))
ii) */(a,@(*(a,b)))
Three persons A,B,C are waiting for Train.A has to wait for sometime twice the time b has to wait.B has to wait till 4:48 and c has to wait 4:57. What is the time now?